Home / 112,042.90-168,064.35-72,385.30

Finding the Fourth Proportional to 112,042.90, 168,064.35 and 72,385.30

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Solution

The fourth proportional to 112,042.90, 168,064.35 and 72,385.30 is: 108,577.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,042.90 : 168,064.35 = 72,385.30 : x
  2. Step 2: Convert to fraction form
    112,042.90/168,064.35 = 72,385.30/x
  3. Step 3: Cross multiply
    112,042.90x = 168,064.35 × 72,385.30
  4. Step 4: Simplify right side
    112,042.90x = 12,165,388,394.06
  5. Step 5: Solve for x
    x = 12,165,388,394.06/112,042.90
  6. Step 6: Final answer
    x = 108,577.95

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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.