Home / 112,587.27-155,497.98-76,715.00

Finding the Fourth Proportional to 112,587.27, 155,497.98 and 76,715.00

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Solution

The fourth proportional to 112,587.27, 155,497.98 and 76,715.00 is: 105,953.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,587.27 : 155,497.98 = 76,715.00 : x
  2. Step 2: Convert to fraction form
    112,587.27/155,497.98 = 76,715.00/x
  3. Step 3: Cross multiply
    112,587.27x = 155,497.98 × 76,715.00
  4. Step 4: Simplify right side
    112,587.27x = 11,929,027,197.49
  5. Step 5: Solve for x
    x = 11,929,027,197.49/112,587.27
  6. Step 6: Final answer
    x = 105,953.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.