Home / 151,747.68-209,432.88-84,684

Finding the Fourth Proportional to 151,747.68, 209,432.88 and 84,684

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Solution

The fourth proportional to 151,747.68, 209,432.88 and 84,684 is: 116,875.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,747.68 : 209,432.88 = 84,684 : x
  2. Step 2: Convert to fraction form
    151,747.68/209,432.88 = 84,684/x
  3. Step 3: Cross multiply
    151,747.68x = 209,432.88 × 84,684
  4. Step 4: Simplify right side
    151,747.68x = 17,735,614,009.92
  5. Step 5: Solve for x
    x = 17,735,614,009.92/151,747.68
  6. Step 6: Final answer
    x = 116,875.68

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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.