Home / 261,426.24-392,081.04-103,612.32

Finding the Fourth Proportional to 261,426.24, 392,081.04 and 103,612.32

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Solution

The fourth proportional to 261,426.24, 392,081.04 and 103,612.32 is: 155,395.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,426.24 : 392,081.04 = 103,612.32 : x
  2. Step 2: Convert to fraction form
    261,426.24/392,081.04 = 103,612.32/x
  3. Step 3: Cross multiply
    261,426.24x = 392,081.04 × 103,612.32
  4. Step 4: Simplify right side
    261,426.24x = 40,624,426,182.41
  5. Step 5: Solve for x
    x = 40,624,426,182.41/261,426.24
  6. Step 6: Final answer
    x = 155,395.37

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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.