Home / 157,318.47-217,111.59-89,356.77

Finding the Fourth Proportional to 157,318.47, 217,111.59 and 89,356.77

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Solution

The fourth proportional to 157,318.47, 217,111.59 and 89,356.77 is: 123,319.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,318.47 : 217,111.59 = 89,356.77 : x
  2. Step 2: Convert to fraction form
    157,318.47/217,111.59 = 89,356.77/x
  3. Step 3: Cross multiply
    157,318.47x = 217,111.59 × 89,356.77
  4. Step 4: Simplify right side
    157,318.47x = 19,400,390,411.96
  5. Step 5: Solve for x
    x = 19,400,390,411.96/157,318.47
  6. Step 6: Final answer
    x = 123,319.22

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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.