Home / 122,386.56-183,568.32-47,542.40

Finding the Fourth Proportional to 122,386.56, 183,568.32 and 47,542.40

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Solution

The fourth proportional to 122,386.56, 183,568.32 and 47,542.40 is: 71,309.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,386.56 : 183,568.32 = 47,542.40 : x
  2. Step 2: Convert to fraction form
    122,386.56/183,568.32 = 47,542.40/x
  3. Step 3: Cross multiply
    122,386.56x = 183,568.32 × 47,542.40
  4. Step 4: Simplify right side
    122,386.56x = 8,727,278,496.77
  5. Step 5: Solve for x
    x = 8,727,278,496.77/122,386.56
  6. Step 6: Final answer
    x = 71,309.12

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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.