Home / 145,631.16-218,445.48-40,449.96

Finding the Fourth Proportional to 145,631.16, 218,445.48 and 40,449.96

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Solution

The fourth proportional to 145,631.16, 218,445.48 and 40,449.96 is: 60,674.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,631.16 : 218,445.48 = 40,449.96 : x
  2. Step 2: Convert to fraction form
    145,631.16/218,445.48 = 40,449.96/x
  3. Step 3: Cross multiply
    145,631.16x = 218,445.48 × 40,449.96
  4. Step 4: Simplify right side
    145,631.16x = 8,836,110,928.18
  5. Step 5: Solve for x
    x = 8,836,110,928.18/145,631.16
  6. Step 6: Final answer
    x = 60,674.59

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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.