Home / 91,116.60-136,674.90-84,895.80

Finding the Fourth Proportional to 91,116.60, 136,674.90 and 84,895.80

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Solution

The fourth proportional to 91,116.60, 136,674.90 and 84,895.80 is: 127,343.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,116.60 : 136,674.90 = 84,895.80 : x
  2. Step 2: Convert to fraction form
    91,116.60/136,674.90 = 84,895.80/x
  3. Step 3: Cross multiply
    91,116.60x = 136,674.90 × 84,895.80
  4. Step 4: Simplify right side
    91,116.60x = 11,603,124,975.42
  5. Step 5: Solve for x
    x = 11,603,124,975.42/91,116.60
  6. Step 6: Final answer
    x = 127,343.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.