Home / 120,808.17-181,187.55-45,902.07

Finding the Fourth Proportional to 120,808.17, 181,187.55 and 45,902.07

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Solution

The fourth proportional to 120,808.17, 181,187.55 and 45,902.07 is: 68,843.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,808.17 : 181,187.55 = 45,902.07 : x
  2. Step 2: Convert to fraction form
    120,808.17/181,187.55 = 45,902.07/x
  3. Step 3: Cross multiply
    120,808.17x = 181,187.55 × 45,902.07
  4. Step 4: Simplify right side
    120,808.17x = 8,316,883,603.23
  5. Step 5: Solve for x
    x = 8,316,883,603.23/120,808.17
  6. Step 6: Final answer
    x = 68,843.72

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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.