Home / 145,312.38-217,971.27-40,134.02

Finding the Fourth Proportional to 145,312.38, 217,971.27 and 40,134.02

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Solution

The fourth proportional to 145,312.38, 217,971.27 and 40,134.02 is: 60,201.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,312.38 : 217,971.27 = 40,134.02 : x
  2. Step 2: Convert to fraction form
    145,312.38/217,971.27 = 40,134.02/x
  3. Step 3: Cross multiply
    145,312.38x = 217,971.27 × 40,134.02
  4. Step 4: Simplify right side
    145,312.38x = 8,748,062,219.75
  5. Step 5: Solve for x
    x = 8,748,062,219.75/145,312.38
  6. Step 6: Final answer
    x = 60,201.77

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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.