Home / 113,891.86-170,838.40-74,697.18

Finding the Fourth Proportional to 113,891.86, 170,838.40 and 74,697.18

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Solution

The fourth proportional to 113,891.86, 170,838.40 and 74,697.18 is: 112,046.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,891.86 : 170,838.40 = 74,697.18 : x
  2. Step 2: Convert to fraction form
    113,891.86/170,838.40 = 74,697.18/x
  3. Step 3: Cross multiply
    113,891.86x = 170,838.40 × 74,697.18
  4. Step 4: Simplify right side
    113,891.86x = 12,761,146,715.71
  5. Step 5: Solve for x
    x = 12,761,146,715.71/113,891.86
  6. Step 6: Final answer
    x = 112,046.17

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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.