Home / 140,543.32-210,829.76-45,780.90

Finding the Fourth Proportional to 140,543.32, 210,829.76 and 45,780.90

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Solution

The fourth proportional to 140,543.32, 210,829.76 and 45,780.90 is: 68,676.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,543.32 : 210,829.76 = 45,780.90 : x
  2. Step 2: Convert to fraction form
    140,543.32/210,829.76 = 45,780.90/x
  3. Step 3: Cross multiply
    140,543.32x = 210,829.76 × 45,780.90
  4. Step 4: Simplify right side
    140,543.32x = 9,651,976,159.58
  5. Step 5: Solve for x
    x = 9,651,976,159.58/140,543.32
  6. Step 6: Final answer
    x = 68,676.16

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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.