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Finding the Fourth Proportional to 115,126.84, 158,875.30 and 66,738.10

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Solution

The fourth proportional to 115,126.84, 158,875.30 and 66,738.10 is: 92,098.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,126.84 : 158,875.30 = 66,738.10 : x
  2. Step 2: Convert to fraction form
    115,126.84/158,875.30 = 66,738.10/x
  3. Step 3: Cross multiply
    115,126.84x = 158,875.30 × 66,738.10
  4. Step 4: Simplify right side
    115,126.84x = 10,603,035,658.93
  5. Step 5: Solve for x
    x = 10,603,035,658.93/115,126.84
  6. Step 6: Final answer
    x = 92,098.73

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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.