Home / 157,495.38-217,347.21-89,501.64

Finding the Fourth Proportional to 157,495.38, 217,347.21 and 89,501.64

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Solution

The fourth proportional to 157,495.38, 217,347.21 and 89,501.64 is: 123,514.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,495.38 : 217,347.21 = 89,501.64 : x
  2. Step 2: Convert to fraction form
    157,495.38/217,347.21 = 89,501.64/x
  3. Step 3: Cross multiply
    157,495.38x = 217,347.21 × 89,501.64
  4. Step 4: Simplify right side
    157,495.38x = 19,452,931,744.42
  5. Step 5: Solve for x
    x = 19,452,931,744.42/157,495.38
  6. Step 6: Final answer
    x = 123,514.30

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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.