Home / 145,259.48-217,901.78-40,078.46

Finding the Fourth Proportional to 145,259.48, 217,901.78 and 40,078.46

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Solution

The fourth proportional to 145,259.48, 217,901.78 and 40,078.46 is: 60,121.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,259.48 : 217,901.78 = 40,078.46 : x
  2. Step 2: Convert to fraction form
    145,259.48/217,901.78 = 40,078.46/x
  3. Step 3: Cross multiply
    145,259.48x = 217,901.78 × 40,078.46
  4. Step 4: Simplify right side
    145,259.48x = 8,733,167,773.66
  5. Step 5: Solve for x
    x = 8,733,167,773.66/145,259.48
  6. Step 6: Final answer
    x = 60,121.16

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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.