Home / 125,006.40-172,509.84-68,418.24

Finding the Fourth Proportional to 125,006.40, 172,509.84 and 68,418.24

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Solution

The fourth proportional to 125,006.40, 172,509.84 and 68,418.24 is: 94,417.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,006.40 : 172,509.84 = 68,418.24 : x
  2. Step 2: Convert to fraction form
    125,006.40/172,509.84 = 68,418.24/x
  3. Step 3: Cross multiply
    125,006.40x = 172,509.84 × 68,418.24
  4. Step 4: Simplify right side
    125,006.40x = 11,802,819,635.48
  5. Step 5: Solve for x
    x = 11,802,819,635.48/125,006.40
  6. Step 6: Final answer
    x = 94,417.72

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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.