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Finding the Fourth Proportional to 157,645.02, 217,532.31 and 90,598.62

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Solution

The fourth proportional to 157,645.02, 217,532.31 and 90,598.62 is: 125,015.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,645.02 : 217,532.31 = 90,598.62 : x
  2. Step 2: Convert to fraction form
    157,645.02/217,532.31 = 90,598.62/x
  3. Step 3: Cross multiply
    157,645.02x = 217,532.31 × 90,598.62
  4. Step 4: Simplify right side
    157,645.02x = 19,708,127,091.41
  5. Step 5: Solve for x
    x = 19,708,127,091.41/157,645.02
  6. Step 6: Final answer
    x = 125,015.86

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1.5x scale

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.