Home / 145,658.25-218,487.38-40,478.13

Finding the Fourth Proportional to 145,658.25, 218,487.38 and 40,478.13

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Solution

The fourth proportional to 145,658.25, 218,487.38 and 40,478.13 is: 60,717.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,658.25 : 218,487.38 = 40,478.13 : x
  2. Step 2: Convert to fraction form
    145,658.25/218,487.38 = 40,478.13/x
  3. Step 3: Cross multiply
    145,658.25x = 218,487.38 × 40,478.13
  4. Step 4: Simplify right side
    145,658.25x = 8,843,960,368.61
  5. Step 5: Solve for x
    x = 8,843,960,368.61/145,658.25
  6. Step 6: Final answer
    x = 60,717.20

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1.5x scale

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.