Home / 112,130.64-167,852.52-72,609.12

Finding the Fourth Proportional to 112,130.64, 167,852.52 and 72,609.12

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Solution

The fourth proportional to 112,130.64, 167,852.52 and 72,609.12 is: 108,691.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,130.64 : 167,852.52 = 72,609.12 : x
  2. Step 2: Convert to fraction form
    112,130.64/167,852.52 = 72,609.12/x
  3. Step 3: Cross multiply
    112,130.64x = 167,852.52 × 72,609.12
  4. Step 4: Simplify right side
    112,130.64x = 12,187,623,766.98
  5. Step 5: Solve for x
    x = 12,187,623,766.98/112,130.64
  6. Step 6: Final answer
    x = 108,691.29

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1.5x scale

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.