Home / 142,374.06-196,459.11-78,703.14

Finding the Fourth Proportional to 142,374.06, 196,459.11 and 78,703.14

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Solution

The fourth proportional to 142,374.06, 196,459.11 and 78,703.14 is: 108,600.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,374.06 : 196,459.11 = 78,703.14 : x
  2. Step 2: Convert to fraction form
    142,374.06/196,459.11 = 78,703.14/x
  3. Step 3: Cross multiply
    142,374.06x = 196,459.11 × 78,703.14
  4. Step 4: Simplify right side
    142,374.06x = 15,461,948,838.61
  5. Step 5: Solve for x
    x = 15,461,948,838.61/142,374.06
  6. Step 6: Final answer
    x = 108,600.88

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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.