Home / 129,566.79-178,741.08-75,818.84

Finding the Fourth Proportional to 129,566.79, 178,741.08 and 75,818.84

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Solution

The fourth proportional to 129,566.79, 178,741.08 and 75,818.84 is: 104,594.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,566.79 : 178,741.08 = 75,818.84 : x
  2. Step 2: Convert to fraction form
    129,566.79/178,741.08 = 75,818.84/x
  3. Step 3: Cross multiply
    129,566.79x = 178,741.08 × 75,818.84
  4. Step 4: Simplify right side
    129,566.79x = 13,551,940,452.24
  5. Step 5: Solve for x
    x = 13,551,940,452.24/129,566.79
  6. Step 6: Final answer
    x = 104,594.24

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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.