Home / 112,115.19-154,631.48-71,832.72

Finding the Fourth Proportional to 112,115.19, 154,631.48 and 71,832.72

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Solution

The fourth proportional to 112,115.19, 154,631.48 and 71,832.72 is: 99,073.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,115.19 : 154,631.48 = 71,832.72 : x
  2. Step 2: Convert to fraction form
    112,115.19/154,631.48 = 71,832.72/x
  3. Step 3: Cross multiply
    112,115.19x = 154,631.48 × 71,832.72
  4. Step 4: Simplify right side
    112,115.19x = 11,107,600,430.79
  5. Step 5: Solve for x
    x = 11,107,600,430.79/112,115.19
  6. Step 6: Final answer
    x = 99,073.11

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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.