Home / 96,141.24-144,016.02-78,435

Finding the Fourth Proportional to 96,141.24, 144,016.02 and 78,435

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Solution

The fourth proportional to 96,141.24, 144,016.02 and 78,435 is: 117,492.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,141.24 : 144,016.02 = 78,435 : x
  2. Step 2: Convert to fraction form
    96,141.24/144,016.02 = 78,435/x
  3. Step 3: Cross multiply
    96,141.24x = 144,016.02 × 78,435
  4. Step 4: Simplify right side
    96,141.24x = 11,295,896,528.70
  5. Step 5: Solve for x
    x = 11,295,896,528.70/96,141.24
  6. Step 6: Final answer
    x = 117,492.73

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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.