Home / 125,078.04-172,601.28-68,478.48

Finding the Fourth Proportional to 125,078.04, 172,601.28 and 68,478.48

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Solution

The fourth proportional to 125,078.04, 172,601.28 and 68,478.48 is: 94,496.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,078.04 : 172,601.28 = 68,478.48 : x
  2. Step 2: Convert to fraction form
    125,078.04/172,601.28 = 68,478.48/x
  3. Step 3: Cross multiply
    125,078.04x = 172,601.28 × 68,478.48
  4. Step 4: Simplify right side
    125,078.04x = 11,819,473,300.45
  5. Step 5: Solve for x
    x = 11,819,473,300.45/125,078.04
  6. Step 6: Final answer
    x = 94,496.79

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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.