Home / 111,423,852.80-167,261,750.40-85,977,670.40

Finding the Fourth Proportional to 111,423,852.80, 167,261,750.40 and 85,977,670.40

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Solution

The fourth proportional to 111,423,852.80, 167,261,750.40 and 85,977,670.40 is: 129,063,708.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,423,852.80 : 167,261,750.40 = 85,977,670.40 : x
  2. Step 2: Convert to fraction form
    111,423,852.80/167,261,750.40 = 85,977,670.40/x
  3. Step 3: Cross multiply
    111,423,852.80x = 167,261,750.40 × 85,977,670.40
  4. Step 4: Simplify right side
    111,423,852.80x = 14,380,775,646,418,270
  5. Step 5: Solve for x
    x = 14,380,775,646,418,270/111,423,852.80
  6. Step 6: Final answer
    x = 129,063,708.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.