Home / 125,314.22-172,917.70-71,602.72

Finding the Fourth Proportional to 125,314.22, 172,917.70 and 71,602.72

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Solution

The fourth proportional to 125,314.22, 172,917.70 and 71,602.72 is: 98,802.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,314.22 : 172,917.70 = 71,602.72 : x
  2. Step 2: Convert to fraction form
    125,314.22/172,917.70 = 71,602.72/x
  3. Step 3: Cross multiply
    125,314.22x = 172,917.70 × 71,602.72
  4. Step 4: Simplify right side
    125,314.22x = 12,381,377,044.84
  5. Step 5: Solve for x
    x = 12,381,377,044.84/125,314.22
  6. Step 6: Final answer
    x = 98,802.65

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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.