Home / 125,219.97-172,778.03-74,210.25

Finding the Fourth Proportional to 125,219.97, 172,778.03 and 74,210.25

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Solution

The fourth proportional to 125,219.97, 172,778.03 and 74,210.25 is: 102,395.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,219.97 : 172,778.03 = 74,210.25 : x
  2. Step 2: Convert to fraction form
    125,219.97/172,778.03 = 74,210.25/x
  3. Step 3: Cross multiply
    125,219.97x = 172,778.03 × 74,210.25
  4. Step 4: Simplify right side
    125,219.97x = 12,821,900,429.76
  5. Step 5: Solve for x
    x = 12,821,900,429.76/125,219.97
  6. Step 6: Final answer
    x = 102,395.01

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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.