Home / 120,590.16-180,827.68-54,030.84

Finding the Fourth Proportional to 120,590.16, 180,827.68 and 54,030.84

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Solution

The fourth proportional to 120,590.16, 180,827.68 and 54,030.84 is: 81,020.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,590.16 : 180,827.68 = 54,030.84 : x
  2. Step 2: Convert to fraction form
    120,590.16/180,827.68 = 54,030.84/x
  3. Step 3: Cross multiply
    120,590.16x = 180,827.68 × 54,030.84
  4. Step 4: Simplify right side
    120,590.16x = 9,770,271,445.65
  5. Step 5: Solve for x
    x = 9,770,271,445.65/120,590.16
  6. Step 6: Final answer
    x = 81,020.47

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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.