Home / 207,927.40-312,036.90-133,229.20

Finding the Fourth Proportional to 207,927.40, 312,036.90 and 133,229.20

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Solution

The fourth proportional to 207,927.40, 312,036.90 and 133,229.20 is: 199,937.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,927.40 : 312,036.90 = 133,229.20 : x
  2. Step 2: Convert to fraction form
    207,927.40/312,036.90 = 133,229.20/x
  3. Step 3: Cross multiply
    207,927.40x = 312,036.90 × 133,229.20
  4. Step 4: Simplify right side
    207,927.40x = 41,572,426,557.48
  5. Step 5: Solve for x
    x = 41,572,426,557.48/207,927.40
  6. Step 6: Final answer
    x = 199,937.22

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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.