Home / 157,984.67-217,988.68-90,000.16

Finding the Fourth Proportional to 157,984.67, 217,988.68 and 90,000.16

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Solution

The fourth proportional to 157,984.67, 217,988.68 and 90,000.16 is: 124,183.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,984.67 : 217,988.68 = 90,000.16 : x
  2. Step 2: Convert to fraction form
    157,984.67/217,988.68 = 90,000.16/x
  3. Step 3: Cross multiply
    157,984.67x = 217,988.68 × 90,000.16
  4. Step 4: Simplify right side
    157,984.67x = 19,619,016,078.19
  5. Step 5: Solve for x
    x = 19,619,016,078.19/157,984.67
  6. Step 6: Final answer
    x = 124,183.04

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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.