Home / 125,026.21-172,537.38-68,438.80

Finding the Fourth Proportional to 125,026.21, 172,537.38 and 68,438.80

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Solution

The fourth proportional to 125,026.21, 172,537.38 and 68,438.80 is: 94,446.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,026.21 : 172,537.38 = 68,438.80 : x
  2. Step 2: Convert to fraction form
    125,026.21/172,537.38 = 68,438.80/x
  3. Step 3: Cross multiply
    125,026.21x = 172,537.38 × 68,438.80
  4. Step 4: Simplify right side
    125,026.21x = 11,808,251,242.34
  5. Step 5: Solve for x
    x = 11,808,251,242.34/125,026.21
  6. Step 6: Final answer
    x = 94,446.21

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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.