Home / 156,828.16-216,275.28-120,961.36

Finding the Fourth Proportional to 156,828.16, 216,275.28 and 120,961.36

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Solution

The fourth proportional to 156,828.16, 216,275.28 and 120,961.36 is: 166,812.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,828.16 : 216,275.28 = 120,961.36 : x
  2. Step 2: Convert to fraction form
    156,828.16/216,275.28 = 120,961.36/x
  3. Step 3: Cross multiply
    156,828.16x = 216,275.28 × 120,961.36
  4. Step 4: Simplify right side
    156,828.16x = 26,160,952,003.18
  5. Step 5: Solve for x
    x = 26,160,952,003.18/156,828.16
  6. Step 6: Final answer
    x = 166,812.85

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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.