Home / 112,263.20-154,979.28-69,835.52

Finding the Fourth Proportional to 112,263.20, 154,979.28 and 69,835.52

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Solution

The fourth proportional to 112,263.20, 154,979.28 and 69,835.52 is: 96,407.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,263.20 : 154,979.28 = 69,835.52 : x
  2. Step 2: Convert to fraction form
    112,263.20/154,979.28 = 69,835.52/x
  3. Step 3: Cross multiply
    112,263.20x = 154,979.28 × 69,835.52
  4. Step 4: Simplify right side
    112,263.20x = 10,823,058,608.03
  5. Step 5: Solve for x
    x = 10,823,058,608.03/112,263.20
  6. Step 6: Final answer
    x = 96,407.89

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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.