Home / 165,738.10-248,607.15-72,426.10

Finding the Fourth Proportional to 165,738.10, 248,607.15 and 72,426.10

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Solution

The fourth proportional to 165,738.10, 248,607.15 and 72,426.10 is: 108,639.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,738.10 : 248,607.15 = 72,426.10 : x
  2. Step 2: Convert to fraction form
    165,738.10/248,607.15 = 72,426.10/x
  3. Step 3: Cross multiply
    165,738.10x = 248,607.15 × 72,426.10
  4. Step 4: Simplify right side
    165,738.10x = 18,005,646,306.62
  5. Step 5: Solve for x
    x = 18,005,646,306.62/165,738.10
  6. Step 6: Final answer
    x = 108,639.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.