Home / 145,312.42-217,972.73-40,131.40

Finding the Fourth Proportional to 145,312.42, 217,972.73 and 40,131.40

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Solution

The fourth proportional to 145,312.42, 217,972.73 and 40,131.40 is: 60,198.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,312.42 : 217,972.73 = 40,131.40 : x
  2. Step 2: Convert to fraction form
    145,312.42/217,972.73 = 40,131.40/x
  3. Step 3: Cross multiply
    145,312.42x = 217,972.73 × 40,131.40
  4. Step 4: Simplify right side
    145,312.42x = 8,747,549,526.20
  5. Step 5: Solve for x
    x = 8,747,549,526.20/145,312.42
  6. Step 6: Final answer
    x = 60,198.23

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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.