Home / 261,784.25-392,451.48-90,983.77

Finding the Fourth Proportional to 261,784.25, 392,451.48 and 90,983.77

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Solution

The fourth proportional to 261,784.25, 392,451.48 and 90,983.77 is: 136,397.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,784.25 : 392,451.48 = 90,983.77 : x
  2. Step 2: Convert to fraction form
    261,784.25/392,451.48 = 90,983.77/x
  3. Step 3: Cross multiply
    261,784.25x = 392,451.48 × 90,983.77
  4. Step 4: Simplify right side
    261,784.25x = 35,706,715,192.48
  5. Step 5: Solve for x
    x = 35,706,715,192.48/261,784.25
  6. Step 6: Final answer
    x = 136,397.49

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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.