Home / 125,110.56-172,649.40-69,920.34

Finding the Fourth Proportional to 125,110.56, 172,649.40 and 69,920.34

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Solution

The fourth proportional to 125,110.56, 172,649.40 and 69,920.34 is: 96,488.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,110.56 : 172,649.40 = 69,920.34 : x
  2. Step 2: Convert to fraction form
    125,110.56/172,649.40 = 69,920.34/x
  3. Step 3: Cross multiply
    125,110.56x = 172,649.40 × 69,920.34
  4. Step 4: Simplify right side
    125,110.56x = 12,071,704,748.80
  5. Step 5: Solve for x
    x = 12,071,704,748.80/125,110.56
  6. Step 6: Final answer
    x = 96,488.30

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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.