Home / 157,928.20-217,940.56-89,945.17

Finding the Fourth Proportional to 157,928.20, 217,940.56 and 89,945.17

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Solution

The fourth proportional to 157,928.20, 217,940.56 and 89,945.17 is: 124,124.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,928.20 : 217,940.56 = 89,945.17 : x
  2. Step 2: Convert to fraction form
    157,928.20/217,940.56 = 89,945.17/x
  3. Step 3: Cross multiply
    157,928.20x = 217,940.56 × 89,945.17
  4. Step 4: Simplify right side
    157,928.20x = 19,602,699,949.38
  5. Step 5: Solve for x
    x = 19,602,699,949.38/157,928.20
  6. Step 6: Final answer
    x = 124,124.13

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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.