Home / 153,664.50-212,041.44-85,675.02

Finding the Fourth Proportional to 153,664.50, 212,041.44 and 85,675.02

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Solution

The fourth proportional to 153,664.50, 212,041.44 and 85,675.02 is: 118,222.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,664.50 : 212,041.44 = 85,675.02 : x
  2. Step 2: Convert to fraction form
    153,664.50/212,041.44 = 85,675.02/x
  3. Step 3: Cross multiply
    153,664.50x = 212,041.44 × 85,675.02
  4. Step 4: Simplify right side
    153,664.50x = 18,166,654,612.83
  5. Step 5: Solve for x
    x = 18,166,654,612.83/153,664.50
  6. Step 6: Final answer
    x = 118,222.85

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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.