Home / 141,644.80-195,471.12-77,984.08

Finding the Fourth Proportional to 141,644.80, 195,471.12 and 77,984.08

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Solution

The fourth proportional to 141,644.80, 195,471.12 and 77,984.08 is: 107,618.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,644.80 : 195,471.12 = 77,984.08 : x
  2. Step 2: Convert to fraction form
    141,644.80/195,471.12 = 77,984.08/x
  3. Step 3: Cross multiply
    141,644.80x = 195,471.12 × 77,984.08
  4. Step 4: Simplify right side
    141,644.80x = 15,243,635,459.77
  5. Step 5: Solve for x
    x = 15,243,635,459.77/141,644.80
  6. Step 6: Final answer
    x = 107,618.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.