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Finding the Fourth Proportional to 145,810.94, 218,713.37 and 40,627.17

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Solution

The fourth proportional to 145,810.94, 218,713.37 and 40,627.17 is: 60,939.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,810.94 : 218,713.37 = 40,627.17 : x
  2. Step 2: Convert to fraction form
    145,810.94/218,713.37 = 40,627.17/x
  3. Step 3: Cross multiply
    145,810.94x = 218,713.37 × 40,627.17
  4. Step 4: Simplify right side
    145,810.94x = 8,885,705,061.13
  5. Step 5: Solve for x
    x = 8,885,705,061.13/145,810.94
  6. Step 6: Final answer
    x = 60,939.91

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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.