Home / 157,701.38-217,628.10-101,112.75

Finding the Fourth Proportional to 157,701.38, 217,628.10 and 101,112.75

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Solution

The fourth proportional to 157,701.38, 217,628.10 and 101,112.75 is: 139,535.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,701.38 : 217,628.10 = 101,112.75 : x
  2. Step 2: Convert to fraction form
    157,701.38/217,628.10 = 101,112.75/x
  3. Step 3: Cross multiply
    157,701.38x = 217,628.10 × 101,112.75
  4. Step 4: Simplify right side
    157,701.38x = 22,004,975,668.28
  5. Step 5: Solve for x
    x = 22,004,975,668.28/157,701.38
  6. Step 6: Final answer
    x = 139,535.72

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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.