Home / 125,118.02-172,679.49-71,390.72

Finding the Fourth Proportional to 125,118.02, 172,679.49 and 71,390.72

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Solution

The fourth proportional to 125,118.02, 172,679.49 and 71,390.72 is: 98,528.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,118.02 : 172,679.49 = 71,390.72 : x
  2. Step 2: Convert to fraction form
    125,118.02/172,679.49 = 71,390.72/x
  3. Step 3: Cross multiply
    125,118.02x = 172,679.49 × 71,390.72
  4. Step 4: Simplify right side
    125,118.02x = 12,327,712,256.94
  5. Step 5: Solve for x
    x = 12,327,712,256.94/125,118.02
  6. Step 6: Final answer
    x = 98,528.68

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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.