Home / 156,930.32-216,611.28-106,658.48

Finding the Fourth Proportional to 156,930.32, 216,611.28 and 106,658.48

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Solution

The fourth proportional to 156,930.32, 216,611.28 and 106,658.48 is: 147,220.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,930.32 : 216,611.28 = 106,658.48 : x
  2. Step 2: Convert to fraction form
    156,930.32/216,611.28 = 106,658.48/x
  3. Step 3: Cross multiply
    156,930.32x = 216,611.28 × 106,658.48
  4. Step 4: Simplify right side
    156,930.32x = 23,103,429,875.65
  5. Step 5: Solve for x
    x = 23,103,429,875.65/156,930.32
  6. Step 6: Final answer
    x = 147,220.94

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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.