Home / 135,941.84-187,601-79,342.16

Finding the Fourth Proportional to 135,941.84, 187,601 and 79,342.16

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Solution

The fourth proportional to 135,941.84, 187,601 and 79,342.16 is: 109,492.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,941.84 : 187,601 = 79,342.16 : x
  2. Step 2: Convert to fraction form
    135,941.84/187,601 = 79,342.16/x
  3. Step 3: Cross multiply
    135,941.84x = 187,601 × 79,342.16
  4. Step 4: Simplify right side
    135,941.84x = 14,884,668,558.16
  5. Step 5: Solve for x
    x = 14,884,668,558.16/135,941.84
  6. Step 6: Final answer
    x = 109,492.92

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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.