Home / 261,429.24-392,085.54-103,615.32

Finding the Fourth Proportional to 261,429.24, 392,085.54 and 103,615.32

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Solution

The fourth proportional to 261,429.24, 392,085.54 and 103,615.32 is: 155,399.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,429.24 : 392,085.54 = 103,615.32 : x
  2. Step 2: Convert to fraction form
    261,429.24/392,085.54 = 103,615.32/x
  3. Step 3: Cross multiply
    261,429.24x = 392,085.54 × 103,615.32
  4. Step 4: Simplify right side
    261,429.24x = 40,626,068,694.47
  5. Step 5: Solve for x
    x = 40,626,068,694.47/261,429.24
  6. Step 6: Final answer
    x = 155,399.87

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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.