Home / 102,438.42-153,657.45-40,065.18

Finding the Fourth Proportional to 102,438.42, 153,657.45 and 40,065.18

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Solution

The fourth proportional to 102,438.42, 153,657.45 and 40,065.18 is: 60,097.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,438.42 : 153,657.45 = 40,065.18 : x
  2. Step 2: Convert to fraction form
    102,438.42/153,657.45 = 40,065.18/x
  3. Step 3: Cross multiply
    102,438.42x = 153,657.45 × 40,065.18
  4. Step 4: Simplify right side
    102,438.42x = 6,156,313,392.59
  5. Step 5: Solve for x
    x = 6,156,313,392.59/102,438.42
  6. Step 6: Final answer
    x = 60,097.70

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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.