Home / 495,148.80-742,723.20-121,171.80

Finding the Fourth Proportional to 495,148.80, 742,723.20 and 121,171.80

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Solution

The fourth proportional to 495,148.80, 742,723.20 and 121,171.80 is: 181,757.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,148.80 : 742,723.20 = 121,171.80 : x
  2. Step 2: Convert to fraction form
    495,148.80/742,723.20 = 121,171.80/x
  3. Step 3: Cross multiply
    495,148.80x = 742,723.20 × 121,171.80
  4. Step 4: Simplify right side
    495,148.80x = 89,997,107,045.76
  5. Step 5: Solve for x
    x = 89,997,107,045.76/495,148.80
  6. Step 6: Final answer
    x = 181,757.70

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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.