Home / 98,815.64-148,068.14-76,381.23

Finding the Fourth Proportional to 98,815.64, 148,068.14 and 76,381.23

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Solution

The fourth proportional to 98,815.64, 148,068.14 and 76,381.23 is: 114,451.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,815.64 : 148,068.14 = 76,381.23 : x
  2. Step 2: Convert to fraction form
    98,815.64/148,068.14 = 76,381.23/x
  3. Step 3: Cross multiply
    98,815.64x = 148,068.14 × 76,381.23
  4. Step 4: Simplify right side
    98,815.64x = 11,309,626,275.11
  5. Step 5: Solve for x
    x = 11,309,626,275.11/98,815.64
  6. Step 6: Final answer
    x = 114,451.79

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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.