Home / 115,178.88-172,378.20-70,833.76

Finding the Fourth Proportional to 115,178.88, 172,378.20 and 70,833.76

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Solution

The fourth proportional to 115,178.88, 172,378.20 and 70,833.76 is: 106,010.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,178.88 : 172,378.20 = 70,833.76 : x
  2. Step 2: Convert to fraction form
    115,178.88/172,378.20 = 70,833.76/x
  3. Step 3: Cross multiply
    115,178.88x = 172,378.20 × 70,833.76
  4. Step 4: Simplify right side
    115,178.88x = 12,210,196,048.03
  5. Step 5: Solve for x
    x = 12,210,196,048.03/115,178.88
  6. Step 6: Final answer
    x = 106,010.72

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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.