Home / 157,638.45-217,532.46-89,646.24

Finding the Fourth Proportional to 157,638.45, 217,532.46 and 89,646.24

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Solution

The fourth proportional to 157,638.45, 217,532.46 and 89,646.24 is: 123,706.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,638.45 : 217,532.46 = 89,646.24 : x
  2. Step 2: Convert to fraction form
    157,638.45/217,532.46 = 89,646.24/x
  3. Step 3: Cross multiply
    157,638.45x = 217,532.46 × 89,646.24
  4. Step 4: Simplify right side
    157,638.45x = 19,500,967,116.95
  5. Step 5: Solve for x
    x = 19,500,967,116.95/157,638.45
  6. Step 6: Final answer
    x = 123,706.92

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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.