Home / 125,356.07-172,981.06-68,767.45

Finding the Fourth Proportional to 125,356.07, 172,981.06 and 68,767.45

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Solution

The fourth proportional to 125,356.07, 172,981.06 and 68,767.45 is: 94,893.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,356.07 : 172,981.06 = 68,767.45 : x
  2. Step 2: Convert to fraction form
    125,356.07/172,981.06 = 68,767.45/x
  3. Step 3: Cross multiply
    125,356.07x = 172,981.06 × 68,767.45
  4. Step 4: Simplify right side
    125,356.07x = 11,895,465,790.13
  5. Step 5: Solve for x
    x = 11,895,465,790.13/125,356.07
  6. Step 6: Final answer
    x = 94,893.41

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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.