Home / 145,701.16-218,551.98-40,520.20

Finding the Fourth Proportional to 145,701.16, 218,551.98 and 40,520.20

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Solution

The fourth proportional to 145,701.16, 218,551.98 and 40,520.20 is: 60,780.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,701.16 : 218,551.98 = 40,520.20 : x
  2. Step 2: Convert to fraction form
    145,701.16/218,551.98 = 40,520.20/x
  3. Step 3: Cross multiply
    145,701.16x = 218,551.98 × 40,520.20
  4. Step 4: Simplify right side
    145,701.16x = 8,855,769,940.00
  5. Step 5: Solve for x
    x = 8,855,769,940.00/145,701.16
  6. Step 6: Final answer
    x = 60,780.37

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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.