Home / 141,897.04-195,817.80-78,235.90

Finding the Fourth Proportional to 141,897.04, 195,817.80 and 78,235.90

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Solution

The fourth proportional to 141,897.04, 195,817.80 and 78,235.90 is: 107,965.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,897.04 : 195,817.80 = 78,235.90 : x
  2. Step 2: Convert to fraction form
    141,897.04/195,817.80 = 78,235.90/x
  3. Step 3: Cross multiply
    141,897.04x = 195,817.80 × 78,235.90
  4. Step 4: Simplify right side
    141,897.04x = 15,319,981,819.02
  5. Step 5: Solve for x
    x = 15,319,981,819.02/141,897.04
  6. Step 6: Final answer
    x = 107,965.48

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1.5x scale

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.