Home / 125,153.21-172,710.39-67,791.20

Finding the Fourth Proportional to 125,153.21, 172,710.39 and 67,791.20

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Solution

The fourth proportional to 125,153.21, 172,710.39 and 67,791.20 is: 93,551.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,153.21 : 172,710.39 = 67,791.20 : x
  2. Step 2: Convert to fraction form
    125,153.21/172,710.39 = 67,791.20/x
  3. Step 3: Cross multiply
    125,153.21x = 172,710.39 × 67,791.20
  4. Step 4: Simplify right side
    125,153.21x = 11,708,243,727.02
  5. Step 5: Solve for x
    x = 11,708,243,727.02/125,153.21
  6. Step 6: Final answer
    x = 93,551.29

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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.