Home / 118,602.42-163,622.07-77,755.38

Finding the Fourth Proportional to 118,602.42, 163,622.07 and 77,755.38

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Solution

The fourth proportional to 118,602.42, 163,622.07 and 77,755.38 is: 107,270.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,602.42 : 163,622.07 = 77,755.38 : x
  2. Step 2: Convert to fraction form
    118,602.42/163,622.07 = 77,755.38/x
  3. Step 3: Cross multiply
    118,602.42x = 163,622.07 × 77,755.38
  4. Step 4: Simplify right side
    118,602.42x = 12,722,496,229.24
  5. Step 5: Solve for x
    x = 12,722,496,229.24/118,602.42
  6. Step 6: Final answer
    x = 107,270.12

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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.