Home / 235,530.40-353,369.12-77,869.60

Finding the Fourth Proportional to 235,530.40, 353,369.12 and 77,869.60

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Solution

The fourth proportional to 235,530.40, 353,369.12 and 77,869.60 is: 116,828.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,530.40 : 353,369.12 = 77,869.60 : x
  2. Step 2: Convert to fraction form
    235,530.40/353,369.12 = 77,869.60/x
  3. Step 3: Cross multiply
    235,530.40x = 353,369.12 × 77,869.60
  4. Step 4: Simplify right side
    235,530.40x = 27,516,712,026.75
  5. Step 5: Solve for x
    x = 27,516,712,026.75/235,530.40
  6. Step 6: Final answer
    x = 116,828.71

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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.