Home / 125,117.20-172,653.96-68,525.20

Finding the Fourth Proportional to 125,117.20, 172,653.96 and 68,525.20

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Solution

The fourth proportional to 125,117.20, 172,653.96 and 68,525.20 is: 94,560.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,117.20 : 172,653.96 = 68,525.20 : x
  2. Step 2: Convert to fraction form
    125,117.20/172,653.96 = 68,525.20/x
  3. Step 3: Cross multiply
    125,117.20x = 172,653.96 × 68,525.20
  4. Step 4: Simplify right side
    125,117.20x = 11,831,147,139.79
  5. Step 5: Solve for x
    x = 11,831,147,139.79/125,117.20
  6. Step 6: Final answer
    x = 94,560.52

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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.