Home / 98,791.12-148,080.39-42,657.66

Finding the Fourth Proportional to 98,791.12, 148,080.39 and 42,657.66

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Solution

The fourth proportional to 98,791.12, 148,080.39 and 42,657.66 is: 63,940.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,791.12 : 148,080.39 = 42,657.66 : x
  2. Step 2: Convert to fraction form
    98,791.12/148,080.39 = 42,657.66/x
  3. Step 3: Cross multiply
    98,791.12x = 148,080.39 × 42,657.66
  4. Step 4: Simplify right side
    98,791.12x = 6,316,762,929.29
  5. Step 5: Solve for x
    x = 6,316,762,929.29/98,791.12
  6. Step 6: Final answer
    x = 63,940.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.