Home / 134,856.08-202,221.52-78,712.40

Finding the Fourth Proportional to 134,856.08, 202,221.52 and 78,712.40

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Solution

The fourth proportional to 134,856.08, 202,221.52 and 78,712.40 is: 118,032.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,856.08 : 202,221.52 = 78,712.40 : x
  2. Step 2: Convert to fraction form
    134,856.08/202,221.52 = 78,712.40/x
  3. Step 3: Cross multiply
    134,856.08x = 202,221.52 × 78,712.40
  4. Step 4: Simplify right side
    134,856.08x = 15,917,341,170.85
  5. Step 5: Solve for x
    x = 15,917,341,170.85/134,856.08
  6. Step 6: Final answer
    x = 118,032.06

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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.