Home / 135,822.96-187,445.88-79,222.32

Finding the Fourth Proportional to 135,822.96, 187,445.88 and 79,222.32

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Solution

The fourth proportional to 135,822.96, 187,445.88 and 79,222.32 is: 109,332.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,822.96 : 187,445.88 = 79,222.32 : x
  2. Step 2: Convert to fraction form
    135,822.96/187,445.88 = 79,222.32/x
  3. Step 3: Cross multiply
    135,822.96x = 187,445.88 × 79,222.32
  4. Step 4: Simplify right side
    135,822.96x = 14,849,897,488.04
  5. Step 5: Solve for x
    x = 14,849,897,488.04/135,822.96
  6. Step 6: Final answer
    x = 109,332.75

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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.