Home / 135,798.08-187,401.42-75,368.75

Finding the Fourth Proportional to 135,798.08, 187,401.42 and 75,368.75

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Solution

The fourth proportional to 135,798.08, 187,401.42 and 75,368.75 is: 104,008.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,798.08 : 187,401.42 = 75,368.75 : x
  2. Step 2: Convert to fraction form
    135,798.08/187,401.42 = 75,368.75/x
  3. Step 3: Cross multiply
    135,798.08x = 187,401.42 × 75,368.75
  4. Step 4: Simplify right side
    135,798.08x = 14,124,209,836.62
  5. Step 5: Solve for x
    x = 14,124,209,836.62/135,798.08
  6. Step 6: Final answer
    x = 104,008.91

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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.