Home / 146,642.10-219,963.15-76,512.30

Finding the Fourth Proportional to 146,642.10, 219,963.15 and 76,512.30

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Solution

The fourth proportional to 146,642.10, 219,963.15 and 76,512.30 is: 114,768.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,642.10 : 219,963.15 = 76,512.30 : x
  2. Step 2: Convert to fraction form
    146,642.10/219,963.15 = 76,512.30/x
  3. Step 3: Cross multiply
    146,642.10x = 219,963.15 × 76,512.30
  4. Step 4: Simplify right side
    146,642.10x = 16,829,886,521.75
  5. Step 5: Solve for x
    x = 16,829,886,521.75/146,642.10
  6. Step 6: Final answer
    x = 114,768.45

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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.