Home / 118,286.95-162,821.67-103,152.91

Finding the Fourth Proportional to 118,286.95, 162,821.67 and 103,152.91

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Solution

The fourth proportional to 118,286.95, 162,821.67 and 103,152.91 is: 141,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,286.95 : 162,821.67 = 103,152.91 : x
  2. Step 2: Convert to fraction form
    118,286.95/162,821.67 = 103,152.91/x
  3. Step 3: Cross multiply
    118,286.95x = 162,821.67 × 103,152.91
  4. Step 4: Simplify right side
    118,286.95x = 16,795,528,890.16
  5. Step 5: Solve for x
    x = 16,795,528,890.16/118,286.95
  6. Step 6: Final answer
    x = 141,989.70

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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.