Home / 155,280.04-214,294.05-87,318.41

Finding the Fourth Proportional to 155,280.04, 214,294.05 and 87,318.41

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Solution

The fourth proportional to 155,280.04, 214,294.05 and 87,318.41 is: 120,503.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,280.04 : 214,294.05 = 87,318.41 : x
  2. Step 2: Convert to fraction form
    155,280.04/214,294.05 = 87,318.41/x
  3. Step 3: Cross multiply
    155,280.04x = 214,294.05 × 87,318.41
  4. Step 4: Simplify right side
    155,280.04x = 18,711,815,718.46
  5. Step 5: Solve for x
    x = 18,711,815,718.46/155,280.04
  6. Step 6: Final answer
    x = 120,503.68

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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.