Home / 146,721.60-219,985.20-53,215.20

Finding the Fourth Proportional to 146,721.60, 219,985.20 and 53,215.20

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Solution

The fourth proportional to 146,721.60, 219,985.20 and 53,215.20 is: 79,787.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,721.60 : 219,985.20 = 53,215.20 : x
  2. Step 2: Convert to fraction form
    146,721.60/219,985.20 = 53,215.20/x
  3. Step 3: Cross multiply
    146,721.60x = 219,985.20 × 53,215.20
  4. Step 4: Simplify right side
    146,721.60x = 11,706,556,415.04
  5. Step 5: Solve for x
    x = 11,706,556,415.04/146,721.60
  6. Step 6: Final answer
    x = 79,787.55

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1.5x scale

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.