Home / 112,985.55-156,126.35-82,305.25

Finding the Fourth Proportional to 112,985.55, 156,126.35 and 82,305.25

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Solution

The fourth proportional to 112,985.55, 156,126.35 and 82,305.25 is: 113,731.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,985.55 : 156,126.35 = 82,305.25 : x
  2. Step 2: Convert to fraction form
    112,985.55/156,126.35 = 82,305.25/x
  3. Step 3: Cross multiply
    112,985.55x = 156,126.35 × 82,305.25
  4. Step 4: Simplify right side
    112,985.55x = 12,850,018,083.78
  5. Step 5: Solve for x
    x = 12,850,018,083.78/112,985.55
  6. Step 6: Final answer
    x = 113,731.52

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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.