Home / 147,981.47-204,215.31-79,998.30

Finding the Fourth Proportional to 147,981.47, 204,215.31 and 79,998.30

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Solution

The fourth proportional to 147,981.47, 204,215.31 and 79,998.30 is: 110,398.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,981.47 : 204,215.31 = 79,998.30 : x
  2. Step 2: Convert to fraction form
    147,981.47/204,215.31 = 79,998.30/x
  3. Step 3: Cross multiply
    147,981.47x = 204,215.31 × 79,998.30
  4. Step 4: Simplify right side
    147,981.47x = 16,336,877,633.97
  5. Step 5: Solve for x
    x = 16,336,877,633.97/147,981.47
  6. Step 6: Final answer
    x = 110,398.13

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1.5x scale

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.