Home / 145,565.71-218,347.33-40,384.66

Finding the Fourth Proportional to 145,565.71, 218,347.33 and 40,384.66

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Solution

The fourth proportional to 145,565.71, 218,347.33 and 40,384.66 is: 60,576.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,565.71 : 218,347.33 = 40,384.66 : x
  2. Step 2: Convert to fraction form
    145,565.71/218,347.33 = 40,384.66/x
  3. Step 3: Cross multiply
    145,565.71x = 218,347.33 × 40,384.66
  4. Step 4: Simplify right side
    145,565.71x = 8,817,882,683.96
  5. Step 5: Solve for x
    x = 8,817,882,683.96/145,565.71
  6. Step 6: Final answer
    x = 60,576.65

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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.