Home / 120,045.19-180,048.85-75,535.69

Finding the Fourth Proportional to 120,045.19, 180,048.85 and 75,535.69

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Solution

The fourth proportional to 120,045.19, 180,048.85 and 75,535.69 is: 113,291.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,045.19 : 180,048.85 = 75,535.69 : x
  2. Step 2: Convert to fraction form
    120,045.19/180,048.85 = 75,535.69/x
  3. Step 3: Cross multiply
    120,045.19x = 180,048.85 × 75,535.69
  4. Step 4: Simplify right side
    120,045.19x = 13,600,113,029.37
  5. Step 5: Solve for x
    x = 13,600,113,029.37/120,045.19
  6. Step 6: Final answer
    x = 113,291.62

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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.