Home / 135,605.76-187,130.88-75,985.92

Finding the Fourth Proportional to 135,605.76, 187,130.88 and 75,985.92

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Solution

The fourth proportional to 135,605.76, 187,130.88 and 75,985.92 is: 104,857.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,605.76 : 187,130.88 = 75,985.92 : x
  2. Step 2: Convert to fraction form
    135,605.76/187,130.88 = 75,985.92/x
  3. Step 3: Cross multiply
    135,605.76x = 187,130.88 × 75,985.92
  4. Step 4: Simplify right side
    135,605.76x = 14,219,312,077.21
  5. Step 5: Solve for x
    x = 14,219,312,077.21/135,605.76
  6. Step 6: Final answer
    x = 104,857.73

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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.