Home / 120,548.40-180,822.59-40,579.65

Finding the Fourth Proportional to 120,548.40, 180,822.59 and 40,579.65

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Solution

The fourth proportional to 120,548.40, 180,822.59 and 40,579.65 is: 60,869.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,548.40 : 180,822.59 = 40,579.65 : x
  2. Step 2: Convert to fraction form
    120,548.40/180,822.59 = 40,579.65/x
  3. Step 3: Cross multiply
    120,548.40x = 180,822.59 × 40,579.65
  4. Step 4: Simplify right side
    120,548.40x = 7,337,717,211.40
  5. Step 5: Solve for x
    x = 7,337,717,211.40/120,548.40
  6. Step 6: Final answer
    x = 60,869.47

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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.