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Finding the Fourth Proportional to 120,712.40, 181,133.40 and 50,598.80

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Solution

The fourth proportional to 120,712.40, 181,133.40 and 50,598.80 is: 75,925.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,712.40 : 181,133.40 = 50,598.80 : x
  2. Step 2: Convert to fraction form
    120,712.40/181,133.40 = 50,598.80/x
  3. Step 3: Cross multiply
    120,712.40x = 181,133.40 × 50,598.80
  4. Step 4: Simplify right side
    120,712.40x = 9,165,132,679.92
  5. Step 5: Solve for x
    x = 9,165,132,679.92/120,712.40
  6. Step 6: Final answer
    x = 75,925.36

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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.