Home / 138,877.18-208,316.04-50,193.30

Finding the Fourth Proportional to 138,877.18, 208,316.04 and 50,193.30

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Solution

The fourth proportional to 138,877.18, 208,316.04 and 50,193.30 is: 75,290.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,877.18 : 208,316.04 = 50,193.30 : x
  2. Step 2: Convert to fraction form
    138,877.18/208,316.04 = 50,193.30/x
  3. Step 3: Cross multiply
    138,877.18x = 208,316.04 × 50,193.30
  4. Step 4: Simplify right side
    138,877.18x = 10,456,069,490.53
  5. Step 5: Solve for x
    x = 10,456,069,490.53/138,877.18
  6. Step 6: Final answer
    x = 75,290.05

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1.5x scale

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.