Home / 138,614.34-207,947.13-43,868.40

Finding the Fourth Proportional to 138,614.34, 207,947.13 and 43,868.40

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Solution

The fourth proportional to 138,614.34, 207,947.13 and 43,868.40 is: 65,810.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,614.34 : 207,947.13 = 43,868.40 : x
  2. Step 2: Convert to fraction form
    138,614.34/207,947.13 = 43,868.40/x
  3. Step 3: Cross multiply
    138,614.34x = 207,947.13 × 43,868.40
  4. Step 4: Simplify right side
    138,614.34x = 9,122,307,877.69
  5. Step 5: Solve for x
    x = 9,122,307,877.69/138,614.34
  6. Step 6: Final answer
    x = 65,810.71

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1.5x scale

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.