Home / 141,712.42-195,572-78,050.20

Finding the Fourth Proportional to 141,712.42, 195,572 and 78,050.20

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Solution

The fourth proportional to 141,712.42, 195,572 and 78,050.20 is: 107,714.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,712.42 : 195,572 = 78,050.20 : x
  2. Step 2: Convert to fraction form
    141,712.42/195,572 = 78,050.20/x
  3. Step 3: Cross multiply
    141,712.42x = 195,572 × 78,050.20
  4. Step 4: Simplify right side
    141,712.42x = 15,264,433,714.40
  5. Step 5: Solve for x
    x = 15,264,433,714.40/141,712.42
  6. Step 6: Final answer
    x = 107,714.16

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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.