Home / 147,731.90-221,446.65-72,736.70

Finding the Fourth Proportional to 147,731.90, 221,446.65 and 72,736.70

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Solution

The fourth proportional to 147,731.90, 221,446.65 and 72,736.70 is: 109,030.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,731.90 : 221,446.65 = 72,736.70 : x
  2. Step 2: Convert to fraction form
    147,731.90/221,446.65 = 72,736.70/x
  3. Step 3: Cross multiply
    147,731.90x = 221,446.65 × 72,736.70
  4. Step 4: Simplify right side
    147,731.90x = 16,107,298,547.06
  5. Step 5: Solve for x
    x = 16,107,298,547.06/147,731.90
  6. Step 6: Final answer
    x = 109,030.61

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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.