Home / 157,404.03-217,218.31-89,424.73

Finding the Fourth Proportional to 157,404.03, 217,218.31 and 89,424.73

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Solution

The fourth proportional to 157,404.03, 217,218.31 and 89,424.73 is: 123,406.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,404.03 : 217,218.31 = 89,424.73 : x
  2. Step 2: Convert to fraction form
    157,404.03/217,218.31 = 89,424.73/x
  3. Step 3: Cross multiply
    157,404.03x = 217,218.31 × 89,424.73
  4. Step 4: Simplify right side
    157,404.03x = 19,424,688,952.14
  5. Step 5: Solve for x
    x = 19,424,688,952.14/157,404.03
  6. Step 6: Final answer
    x = 123,406.56

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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.