Home / 106,780.92-147,353.70-61,465.88

Finding the Fourth Proportional to 106,780.92, 147,353.70 and 61,465.88

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Solution

The fourth proportional to 106,780.92, 147,353.70 and 61,465.88 is: 84,820.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,780.92 : 147,353.70 = 61,465.88 : x
  2. Step 2: Convert to fraction form
    106,780.92/147,353.70 = 61,465.88/x
  3. Step 3: Cross multiply
    106,780.92x = 147,353.70 × 61,465.88
  4. Step 4: Simplify right side
    106,780.92x = 9,057,224,841.76
  5. Step 5: Solve for x
    x = 9,057,224,841.76/106,780.92
  6. Step 6: Final answer
    x = 84,820.63

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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.