Home / 120,271.38-180,403.33-57,136.93

Finding the Fourth Proportional to 120,271.38, 180,403.33 and 57,136.93

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Solution

The fourth proportional to 120,271.38, 180,403.33 and 57,136.93 is: 85,703.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,271.38 : 180,403.33 = 57,136.93 : x
  2. Step 2: Convert to fraction form
    120,271.38/180,403.33 = 57,136.93/x
  3. Step 3: Cross multiply
    120,271.38x = 180,403.33 × 57,136.93
  4. Step 4: Simplify right side
    120,271.38x = 10,307,692,437.98
  5. Step 5: Solve for x
    x = 10,307,692,437.98/120,271.38
  6. Step 6: Final answer
    x = 85,703.62

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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.