Home / 135,703.84-187,271.46-79,126.15

Finding the Fourth Proportional to 135,703.84, 187,271.46 and 79,126.15

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Solution

The fourth proportional to 135,703.84, 187,271.46 and 79,126.15 is: 109,194.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,703.84 : 187,271.46 = 79,126.15 : x
  2. Step 2: Convert to fraction form
    135,703.84/187,271.46 = 79,126.15/x
  3. Step 3: Cross multiply
    135,703.84x = 187,271.46 × 79,126.15
  4. Step 4: Simplify right side
    135,703.84x = 14,818,069,634.68
  5. Step 5: Solve for x
    x = 14,818,069,634.68/135,703.84
  6. Step 6: Final answer
    x = 109,194.18

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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.