Home / 145,423.45-218,110.52-40,217.82

Finding the Fourth Proportional to 145,423.45, 218,110.52 and 40,217.82

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Solution

The fourth proportional to 145,423.45, 218,110.52 and 40,217.82 is: 60,319.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,423.45 : 218,110.52 = 40,217.82 : x
  2. Step 2: Convert to fraction form
    145,423.45/218,110.52 = 40,217.82/x
  3. Step 3: Cross multiply
    145,423.45x = 218,110.52 × 40,217.82
  4. Step 4: Simplify right side
    145,423.45x = 8,771,928,916.10
  5. Step 5: Solve for x
    x = 8,771,928,916.10/145,423.45
  6. Step 6: Final answer
    x = 60,319.91

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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.