Home / 495,085.62-742,656.90-140,069.88

Finding the Fourth Proportional to 495,085.62, 742,656.90 and 140,069.88

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Solution

The fourth proportional to 495,085.62, 742,656.90 and 140,069.88 is: 210,112.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,085.62 : 742,656.90 = 140,069.88 : x
  2. Step 2: Convert to fraction form
    495,085.62/742,656.90 = 140,069.88/x
  3. Step 3: Cross multiply
    495,085.62x = 742,656.90 × 140,069.88
  4. Step 4: Simplify right side
    495,085.62x = 104,023,862,864.17
  5. Step 5: Solve for x
    x = 104,023,862,864.17/495,085.62
  6. Step 6: Final answer
    x = 210,112.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.