Home / 145,438.32-218,162.25-40,248.48

Finding the Fourth Proportional to 145,438.32, 218,162.25 and 40,248.48

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Solution

The fourth proportional to 145,438.32, 218,162.25 and 40,248.48 is: 60,374.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,438.32 : 218,162.25 = 40,248.48 : x
  2. Step 2: Convert to fraction form
    145,438.32/218,162.25 = 40,248.48/x
  3. Step 3: Cross multiply
    145,438.32x = 218,162.25 × 40,248.48
  4. Step 4: Simplify right side
    145,438.32x = 8,780,698,955.88
  5. Step 5: Solve for x
    x = 8,780,698,955.88/145,438.32
  6. Step 6: Final answer
    x = 60,374.04

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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.