Home / 134,854.70-202,219.47-78,710.96

Finding the Fourth Proportional to 134,854.70, 202,219.47 and 78,710.96

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Solution

The fourth proportional to 134,854.70, 202,219.47 and 78,710.96 is: 118,029.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,854.70 : 202,219.47 = 78,710.96 : x
  2. Step 2: Convert to fraction form
    134,854.70/202,219.47 = 78,710.96/x
  3. Step 3: Cross multiply
    134,854.70x = 202,219.47 × 78,710.96
  4. Step 4: Simplify right side
    134,854.70x = 15,916,889,119.94
  5. Step 5: Solve for x
    x = 15,916,889,119.94/134,854.70
  6. Step 6: Final answer
    x = 118,029.92

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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.