Home / 103,440.18-142,764.08-96,686.47

Finding the Fourth Proportional to 103,440.18, 142,764.08 and 96,686.47

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Solution

The fourth proportional to 103,440.18, 142,764.08 and 96,686.47 is: 133,442.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,440.18 : 142,764.08 = 96,686.47 : x
  2. Step 2: Convert to fraction form
    103,440.18/142,764.08 = 96,686.47/x
  3. Step 3: Cross multiply
    103,440.18x = 142,764.08 × 96,686.47
  4. Step 4: Simplify right side
    103,440.18x = 13,803,354,938.00
  5. Step 5: Solve for x
    x = 13,803,354,938.00/103,440.18
  6. Step 6: Final answer
    x = 133,442.87

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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.