Home / 125,245.74-172,846.20-74,288.64

Finding the Fourth Proportional to 125,245.74, 172,846.20 and 74,288.64

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Solution

The fourth proportional to 125,245.74, 172,846.20 and 74,288.64 is: 102,522.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,245.74 : 172,846.20 = 74,288.64 : x
  2. Step 2: Convert to fraction form
    125,245.74/172,846.20 = 74,288.64/x
  3. Step 3: Cross multiply
    125,245.74x = 172,846.20 × 74,288.64
  4. Step 4: Simplify right side
    125,245.74x = 12,840,509,127.17
  5. Step 5: Solve for x
    x = 12,840,509,127.17/125,245.74
  6. Step 6: Final answer
    x = 102,522.52

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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.