Home / 146,006.64-201,488.28-78,938.48

Finding the Fourth Proportional to 146,006.64, 201,488.28 and 78,938.48

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Solution

The fourth proportional to 146,006.64, 201,488.28 and 78,938.48 is: 108,934.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,006.64 : 201,488.28 = 78,938.48 : x
  2. Step 2: Convert to fraction form
    146,006.64/201,488.28 = 78,938.48/x
  3. Step 3: Cross multiply
    146,006.64x = 201,488.28 × 78,938.48
  4. Step 4: Simplify right side
    146,006.64x = 15,905,178,561.01
  5. Step 5: Solve for x
    x = 15,905,178,561.01/146,006.64
  6. Step 6: Final answer
    x = 108,934.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.