Home / 157,699.16-217,592.35-90,618.20

Finding the Fourth Proportional to 157,699.16, 217,592.35 and 90,618.20

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Solution

The fourth proportional to 157,699.16, 217,592.35 and 90,618.20 is: 125,034.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,699.16 : 217,592.35 = 90,618.20 : x
  2. Step 2: Convert to fraction form
    157,699.16/217,592.35 = 90,618.20/x
  3. Step 3: Cross multiply
    157,699.16x = 217,592.35 × 90,618.20
  4. Step 4: Simplify right side
    157,699.16x = 19,717,825,776.26
  5. Step 5: Solve for x
    x = 19,717,825,776.26/157,699.16
  6. Step 6: Final answer
    x = 125,034.44

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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.