Home / 140,581.95-210,851.26-45,811.90

Finding the Fourth Proportional to 140,581.95, 210,851.26 and 45,811.90

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Solution

The fourth proportional to 140,581.95, 210,851.26 and 45,811.90 is: 68,710.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,581.95 : 210,851.26 = 45,811.90 : x
  2. Step 2: Convert to fraction form
    140,581.95/210,851.26 = 45,811.90/x
  3. Step 3: Cross multiply
    140,581.95x = 210,851.26 × 45,811.90
  4. Step 4: Simplify right side
    140,581.95x = 9,659,495,783.74
  5. Step 5: Solve for x
    x = 9,659,495,783.74/140,581.95
  6. Step 6: Final answer
    x = 68,710.78

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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.