Home / 156,823.82-216,369.20-88,830

Finding the Fourth Proportional to 156,823.82, 216,369.20 and 88,830

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Solution

The fourth proportional to 156,823.82, 216,369.20 and 88,830 is: 122,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,823.82 : 216,369.20 = 88,830 : x
  2. Step 2: Convert to fraction form
    156,823.82/216,369.20 = 88,830/x
  3. Step 3: Cross multiply
    156,823.82x = 216,369.20 × 88,830
  4. Step 4: Simplify right side
    156,823.82x = 19,220,076,036
  5. Step 5: Solve for x
    x = 19,220,076,036/156,823.82
  6. Step 6: Final answer
    x = 122,558.40

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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.