Home / 112,189.28-168,054.96-69,931.04

Finding the Fourth Proportional to 112,189.28, 168,054.96 and 69,931.04

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Solution

The fourth proportional to 112,189.28, 168,054.96 and 69,931.04 is: 104,753.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,189.28 : 168,054.96 = 69,931.04 : x
  2. Step 2: Convert to fraction form
    112,189.28/168,054.96 = 69,931.04/x
  3. Step 3: Cross multiply
    112,189.28x = 168,054.96 × 69,931.04
  4. Step 4: Simplify right side
    112,189.28x = 11,752,258,129.96
  5. Step 5: Solve for x
    x = 11,752,258,129.96/112,189.28
  6. Step 6: Final answer
    x = 104,753.84

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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.