Home / 155,279.04-214,292.67-87,317.41

Finding the Fourth Proportional to 155,279.04, 214,292.67 and 87,317.41

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Solution

The fourth proportional to 155,279.04, 214,292.67 and 87,317.41 is: 120,502.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,279.04 : 214,292.67 = 87,317.41 : x
  2. Step 2: Convert to fraction form
    155,279.04/214,292.67 = 87,317.41/x
  3. Step 3: Cross multiply
    155,279.04x = 214,292.67 × 87,317.41
  4. Step 4: Simplify right side
    155,279.04x = 18,711,480,926.38
  5. Step 5: Solve for x
    x = 18,711,480,926.38/155,279.04
  6. Step 6: Final answer
    x = 120,502.30

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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.