Home / 156,633.90-216,152.44-88,663.74

Finding the Fourth Proportional to 156,633.90, 216,152.44 and 88,663.74

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Solution

The fourth proportional to 156,633.90, 216,152.44 and 88,663.74 is: 122,354.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,633.90 : 216,152.44 = 88,663.74 : x
  2. Step 2: Convert to fraction form
    156,633.90/216,152.44 = 88,663.74/x
  3. Step 3: Cross multiply
    156,633.90x = 216,152.44 × 88,663.74
  4. Step 4: Simplify right side
    156,633.90x = 19,164,883,740.53
  5. Step 5: Solve for x
    x = 19,164,883,740.53/156,633.90
  6. Step 6: Final answer
    x = 122,354.64

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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.