Home / 155,005.52-213,500.20-119,126.88

Finding the Fourth Proportional to 155,005.52, 213,500.20 and 119,126.88

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Solution

The fourth proportional to 155,005.52, 213,500.20 and 119,126.88 is: 164,081.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,005.52 : 213,500.20 = 119,126.88 : x
  2. Step 2: Convert to fraction form
    155,005.52/213,500.20 = 119,126.88/x
  3. Step 3: Cross multiply
    155,005.52x = 213,500.20 × 119,126.88
  4. Step 4: Simplify right side
    155,005.52x = 25,433,612,705.38
  5. Step 5: Solve for x
    x = 25,433,612,705.38/155,005.52
  6. Step 6: Final answer
    x = 164,081.98

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1.5x scale

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.