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Finding the Fourth Proportional to 120,767.40, 181,182.42 and 45,888.84

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Solution

The fourth proportional to 120,767.40, 181,182.42 and 45,888.84 is: 68,845.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,767.40 : 181,182.42 = 45,888.84 : x
  2. Step 2: Convert to fraction form
    120,767.40/181,182.42 = 45,888.84/x
  3. Step 3: Cross multiply
    120,767.40x = 181,182.42 × 45,888.84
  4. Step 4: Simplify right side
    120,767.40x = 8,314,251,082.19
  5. Step 5: Solve for x
    x = 8,314,251,082.19/120,767.40
  6. Step 6: Final answer
    x = 68,845.16

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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.