Home / 102,766.65-141,725.86-85,596.06

Finding the Fourth Proportional to 102,766.65, 141,725.86 and 85,596.06

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Solution

The fourth proportional to 102,766.65, 141,725.86 and 85,596.06 is: 118,045.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,766.65 : 141,725.86 = 85,596.06 : x
  2. Step 2: Convert to fraction form
    102,766.65/141,725.86 = 85,596.06/x
  3. Step 3: Cross multiply
    102,766.65x = 141,725.86 × 85,596.06
  4. Step 4: Simplify right side
    102,766.65x = 12,131,175,216.11
  5. Step 5: Solve for x
    x = 12,131,175,216.11/102,766.65
  6. Step 6: Final answer
    x = 118,045.84

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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.