Home / 157,628.16-217,535.20-90,564.48

Finding the Fourth Proportional to 157,628.16, 217,535.20 and 90,564.48

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Solution

The fourth proportional to 157,628.16, 217,535.20 and 90,564.48 is: 124,983.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,628.16 : 217,535.20 = 90,564.48 : x
  2. Step 2: Convert to fraction form
    157,628.16/217,535.20 = 90,564.48/x
  3. Step 3: Cross multiply
    157,628.16x = 217,535.20 × 90,564.48
  4. Step 4: Simplify right side
    157,628.16x = 19,700,962,269.70
  5. Step 5: Solve for x
    x = 19,700,962,269.70/157,628.16
  6. Step 6: Final answer
    x = 124,983.77

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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.