Home / 120,535.04-180,788.70-31,795.58

Finding the Fourth Proportional to 120,535.04, 180,788.70 and 31,795.58

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Solution

The fourth proportional to 120,535.04, 180,788.70 and 31,795.58 is: 47,689.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,535.04 : 180,788.70 = 31,795.58 : x
  2. Step 2: Convert to fraction form
    120,535.04/180,788.70 = 31,795.58/x
  3. Step 3: Cross multiply
    120,535.04x = 180,788.70 × 31,795.58
  4. Step 4: Simplify right side
    120,535.04x = 5,748,281,573.95
  5. Step 5: Solve for x
    x = 5,748,281,573.95/120,535.04
  6. Step 6: Final answer
    x = 47,689.71

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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.