Home / 112,776.58-155,624.39-61,789.24

Finding the Fourth Proportional to 112,776.58, 155,624.39 and 61,789.24

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Solution

The fourth proportional to 112,776.58, 155,624.39 and 61,789.24 is: 85,265.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,776.58 : 155,624.39 = 61,789.24 : x
  2. Step 2: Convert to fraction form
    112,776.58/155,624.39 = 61,789.24/x
  3. Step 3: Cross multiply
    112,776.58x = 155,624.39 × 61,789.24
  4. Step 4: Simplify right side
    112,776.58x = 9,615,912,783.56
  5. Step 5: Solve for x
    x = 9,615,912,783.56/112,776.58
  6. Step 6: Final answer
    x = 85,265.16

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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.