Home / 145,397.23-218,078.97-40,224.40

Finding the Fourth Proportional to 145,397.23, 218,078.97 and 40,224.40

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Solution

The fourth proportional to 145,397.23, 218,078.97 and 40,224.40 is: 60,331.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,397.23 : 218,078.97 = 40,224.40 : x
  2. Step 2: Convert to fraction form
    145,397.23/218,078.97 = 40,224.40/x
  3. Step 3: Cross multiply
    145,397.23x = 218,078.97 × 40,224.40
  4. Step 4: Simplify right side
    145,397.23x = 8,772,095,720.87
  5. Step 5: Solve for x
    x = 8,772,095,720.87/145,397.23
  6. Step 6: Final answer
    x = 60,331.93

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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.