Home / 316,784.22-475,177.89-80,127.12

Finding the Fourth Proportional to 316,784.22, 475,177.89 and 80,127.12

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Solution

The fourth proportional to 316,784.22, 475,177.89 and 80,127.12 is: 120,191.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,784.22 : 475,177.89 = 80,127.12 : x
  2. Step 2: Convert to fraction form
    316,784.22/475,177.89 = 80,127.12/x
  3. Step 3: Cross multiply
    316,784.22x = 475,177.89 × 80,127.12
  4. Step 4: Simplify right side
    316,784.22x = 38,074,637,895.77
  5. Step 5: Solve for x
    x = 38,074,637,895.77/316,784.22
  6. Step 6: Final answer
    x = 120,191.08

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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.