Home / 124,785.64-172,155.35-76,955.96

Finding the Fourth Proportional to 124,785.64, 172,155.35 and 76,955.96

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Solution

The fourth proportional to 124,785.64, 172,155.35 and 76,955.96 is: 106,169.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,785.64 : 172,155.35 = 76,955.96 : x
  2. Step 2: Convert to fraction form
    124,785.64/172,155.35 = 76,955.96/x
  3. Step 3: Cross multiply
    124,785.64x = 172,155.35 × 76,955.96
  4. Step 4: Simplify right side
    124,785.64x = 13,248,380,228.39
  5. Step 5: Solve for x
    x = 13,248,380,228.39/124,785.64
  6. Step 6: Final answer
    x = 106,169.11

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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.