Home / 155,373.22-214,412.92-87,390.17

Finding the Fourth Proportional to 155,373.22, 214,412.92 and 87,390.17

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Solution

The fourth proportional to 155,373.22, 214,412.92 and 87,390.17 is: 120,597.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,373.22 : 214,412.92 = 87,390.17 : x
  2. Step 2: Convert to fraction form
    155,373.22/214,412.92 = 87,390.17/x
  3. Step 3: Cross multiply
    155,373.22x = 214,412.92 × 87,390.17
  4. Step 4: Simplify right side
    155,373.22x = 18,737,582,740.15
  5. Step 5: Solve for x
    x = 18,737,582,740.15/155,373.22
  6. Step 6: Final answer
    x = 120,597.25

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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.