Home / 235,742.40-353,640.96-77,972.04

Finding the Fourth Proportional to 235,742.40, 353,640.96 and 77,972.04

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Solution

The fourth proportional to 235,742.40, 353,640.96 and 77,972.04 is: 116,967.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,742.40 : 353,640.96 = 77,972.04 : x
  2. Step 2: Convert to fraction form
    235,742.40/353,640.96 = 77,972.04/x
  3. Step 3: Cross multiply
    235,742.40x = 353,640.96 × 77,972.04
  4. Step 4: Simplify right side
    235,742.40x = 27,574,107,078.76
  5. Step 5: Solve for x
    x = 27,574,107,078.76/235,742.40
  6. Step 6: Final answer
    x = 116,967.11

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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.