Home / 125,807.82-173,618.95-72,103.13

Finding the Fourth Proportional to 125,807.82, 173,618.95 and 72,103.13

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Solution

The fourth proportional to 125,807.82, 173,618.95 and 72,103.13 is: 99,504.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,807.82 : 173,618.95 = 72,103.13 : x
  2. Step 2: Convert to fraction form
    125,807.82/173,618.95 = 72,103.13/x
  3. Step 3: Cross multiply
    125,807.82x = 173,618.95 × 72,103.13
  4. Step 4: Simplify right side
    125,807.82x = 12,518,469,722.31
  5. Step 5: Solve for x
    x = 12,518,469,722.31/125,807.82
  6. Step 6: Final answer
    x = 99,504.70

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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.