Home / 95,605.12-142,987.92-85,148.80

Finding the Fourth Proportional to 95,605.12, 142,987.92 and 85,148.80

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Solution

The fourth proportional to 95,605.12, 142,987.92 and 85,148.80 is: 127,349.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,605.12 : 142,987.92 = 85,148.80 : x
  2. Step 2: Convert to fraction form
    95,605.12/142,987.92 = 85,148.80/x
  3. Step 3: Cross multiply
    95,605.12x = 142,987.92 × 85,148.80
  4. Step 4: Simplify right side
    95,605.12x = 12,175,249,802.50
  5. Step 5: Solve for x
    x = 12,175,249,802.50/95,605.12
  6. Step 6: Final answer
    x = 127,349.35

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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.