Home / 125,312.39-172,931.33-68,724.17

Finding the Fourth Proportional to 125,312.39, 172,931.33 and 68,724.17

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Solution

The fourth proportional to 125,312.39, 172,931.33 and 68,724.17 is: 94,839.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,312.39 : 172,931.33 = 68,724.17 : x
  2. Step 2: Convert to fraction form
    125,312.39/172,931.33 = 68,724.17/x
  3. Step 3: Cross multiply
    125,312.39x = 172,931.33 × 68,724.17
  4. Step 4: Simplify right side
    125,312.39x = 11,884,562,121.25
  5. Step 5: Solve for x
    x = 11,884,562,121.25/125,312.39
  6. Step 6: Final answer
    x = 94,839.48

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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.