Home / 155,342.93-214,371.20-87,359.88

Finding the Fourth Proportional to 155,342.93, 214,371.20 and 87,359.88

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Solution

The fourth proportional to 155,342.93, 214,371.20 and 87,359.88 is: 120,555.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,342.93 : 214,371.20 = 87,359.88 : x
  2. Step 2: Convert to fraction form
    155,342.93/214,371.20 = 87,359.88/x
  3. Step 3: Cross multiply
    155,342.93x = 214,371.20 × 87,359.88
  4. Step 4: Simplify right side
    155,342.93x = 18,727,442,307.46
  5. Step 5: Solve for x
    x = 18,727,442,307.46/155,342.93
  6. Step 6: Final answer
    x = 120,555.49

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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.