Home / 103,495.20-142,877.76-69,681.48

Finding the Fourth Proportional to 103,495.20, 142,877.76 and 69,681.48

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Solution

The fourth proportional to 103,495.20, 142,877.76 and 69,681.48 is: 96,197.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,495.20 : 142,877.76 = 69,681.48 : x
  2. Step 2: Convert to fraction form
    103,495.20/142,877.76 = 69,681.48/x
  3. Step 3: Cross multiply
    103,495.20x = 142,877.76 × 69,681.48
  4. Step 4: Simplify right side
    103,495.20x = 9,955,933,775.88
  5. Step 5: Solve for x
    x = 9,955,933,775.88/103,495.20
  6. Step 6: Final answer
    x = 96,197.06

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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.