Home / 138,909.48-191,696.00-75,247.29

Finding the Fourth Proportional to 138,909.48, 191,696.00 and 75,247.29

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Solution

The fourth proportional to 138,909.48, 191,696.00 and 75,247.29 is: 103,841.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,909.48 : 191,696.00 = 75,247.29 : x
  2. Step 2: Convert to fraction form
    138,909.48/191,696.00 = 75,247.29/x
  3. Step 3: Cross multiply
    138,909.48x = 191,696.00 × 75,247.29
  4. Step 4: Simplify right side
    138,909.48x = 14,424,604,127.60
  5. Step 5: Solve for x
    x = 14,424,604,127.60/138,909.48
  6. Step 6: Final answer
    x = 103,841.75

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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.