Home / 145,331.16-217,994.58-40,147.80

Finding the Fourth Proportional to 145,331.16, 217,994.58 and 40,147.80

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Solution

The fourth proportional to 145,331.16, 217,994.58 and 40,147.80 is: 60,221.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,331.16 : 217,994.58 = 40,147.80 : x
  2. Step 2: Convert to fraction form
    145,331.16/217,994.58 = 40,147.80/x
  3. Step 3: Cross multiply
    145,331.16x = 217,994.58 × 40,147.80
  4. Step 4: Simplify right side
    145,331.16x = 8,752,002,798.92
  5. Step 5: Solve for x
    x = 8,752,002,798.92/145,331.16
  6. Step 6: Final answer
    x = 60,221.10

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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.