Home / 129,868.64-194,801.94-69,925.20

Finding the Fourth Proportional to 129,868.64, 194,801.94 and 69,925.20

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Solution

The fourth proportional to 129,868.64, 194,801.94 and 69,925.20 is: 104,887.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,868.64 : 194,801.94 = 69,925.20 : x
  2. Step 2: Convert to fraction form
    129,868.64/194,801.94 = 69,925.20/x
  3. Step 3: Cross multiply
    129,868.64x = 194,801.94 × 69,925.20
  4. Step 4: Simplify right side
    129,868.64x = 13,621,564,614.89
  5. Step 5: Solve for x
    x = 13,621,564,614.89/129,868.64
  6. Step 6: Final answer
    x = 104,887.25

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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.