Home / 136,312.88-204,568.68-69,808.64

Finding the Fourth Proportional to 136,312.88, 204,568.68 and 69,808.64

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Solution

The fourth proportional to 136,312.88, 204,568.68 and 69,808.64 is: 104,763.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,312.88 : 204,568.68 = 69,808.64 : x
  2. Step 2: Convert to fraction form
    136,312.88/204,568.68 = 69,808.64/x
  3. Step 3: Cross multiply
    136,312.88x = 204,568.68 × 69,808.64
  4. Step 4: Simplify right side
    136,312.88x = 14,280,661,337.40
  5. Step 5: Solve for x
    x = 14,280,661,337.40/136,312.88
  6. Step 6: Final answer
    x = 104,763.84

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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.