Home / 120,816.40-181,159.80-50,616.40

Finding the Fourth Proportional to 120,816.40, 181,159.80 and 50,616.40

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Solution

The fourth proportional to 120,816.40, 181,159.80 and 50,616.40 is: 75,897.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,816.40 : 181,159.80 = 50,616.40 : x
  2. Step 2: Convert to fraction form
    120,816.40/181,159.80 = 50,616.40/x
  3. Step 3: Cross multiply
    120,816.40x = 181,159.80 × 50,616.40
  4. Step 4: Simplify right side
    120,816.40x = 9,169,656,900.72
  5. Step 5: Solve for x
    x = 9,169,656,900.72/120,816.40
  6. Step 6: Final answer
    x = 75,897.45

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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.