Home / 139,261.04-192,159.96-79,633.52

Finding the Fourth Proportional to 139,261.04, 192,159.96 and 79,633.52

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Solution

The fourth proportional to 139,261.04, 192,159.96 and 79,633.52 is: 109,882.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,261.04 : 192,159.96 = 79,633.52 : x
  2. Step 2: Convert to fraction form
    139,261.04/192,159.96 = 79,633.52/x
  3. Step 3: Cross multiply
    139,261.04x = 192,159.96 × 79,633.52
  4. Step 4: Simplify right side
    139,261.04x = 15,302,374,017.86
  5. Step 5: Solve for x
    x = 15,302,374,017.86/139,261.04
  6. Step 6: Final answer
    x = 109,882.66

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1.5x scale

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.