Home / 316,064.20-473,999.10-91,445.80

Finding the Fourth Proportional to 316,064.20, 473,999.10 and 91,445.80

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Solution

The fourth proportional to 316,064.20, 473,999.10 and 91,445.80 is: 137,140.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,064.20 : 473,999.10 = 91,445.80 : x
  2. Step 2: Convert to fraction form
    316,064.20/473,999.10 = 91,445.80/x
  3. Step 3: Cross multiply
    316,064.20x = 473,999.10 × 91,445.80
  4. Step 4: Simplify right side
    316,064.20x = 43,345,226,898.78
  5. Step 5: Solve for x
    x = 43,345,226,898.78/316,064.20
  6. Step 6: Final answer
    x = 137,140.58

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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.