Home / 111,860.90-154,368.55-64,117.04

Finding the Fourth Proportional to 111,860.90, 154,368.55 and 64,117.04

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Solution

The fourth proportional to 111,860.90, 154,368.55 and 64,117.04 is: 88,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,860.90 : 154,368.55 = 64,117.04 : x
  2. Step 2: Convert to fraction form
    111,860.90/154,368.55 = 64,117.04/x
  3. Step 3: Cross multiply
    111,860.90x = 154,368.55 × 64,117.04
  4. Step 4: Simplify right side
    111,860.90x = 9,897,653,562.96
  5. Step 5: Solve for x
    x = 9,897,653,562.96/111,860.90
  6. Step 6: Final answer
    x = 88,481.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.