Home / 213,721.50-294,910.16-118,215.21

Finding the Fourth Proportional to 213,721.50, 294,910.16 and 118,215.21

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Solution

The fourth proportional to 213,721.50, 294,910.16 and 118,215.21 is: 163,122.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,721.50 : 294,910.16 = 118,215.21 : x
  2. Step 2: Convert to fraction form
    213,721.50/294,910.16 = 118,215.21/x
  3. Step 3: Cross multiply
    213,721.50x = 294,910.16 × 118,215.21
  4. Step 4: Simplify right side
    213,721.50x = 34,862,865,904.46
  5. Step 5: Solve for x
    x = 34,862,865,904.46/213,721.50
  6. Step 6: Final answer
    x = 163,122.88

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1.5x scale

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.