Home / 120,348.75-180,527.31-57,136.35

Finding the Fourth Proportional to 120,348.75, 180,527.31 and 57,136.35

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Solution

The fourth proportional to 120,348.75, 180,527.31 and 57,136.35 is: 85,706.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,348.75 : 180,527.31 = 57,136.35 : x
  2. Step 2: Convert to fraction form
    120,348.75/180,527.31 = 57,136.35/x
  3. Step 3: Cross multiply
    120,348.75x = 180,527.31 × 57,136.35
  4. Step 4: Simplify right side
    120,348.75x = 10,314,671,568.72
  5. Step 5: Solve for x
    x = 10,314,671,568.72/120,348.75
  6. Step 6: Final answer
    x = 85,706.51

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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.