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Finding the Fourth Proportional to 185,702.96, 256,270.08 and 100,820.04

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Solution

The fourth proportional to 185,702.96, 256,270.08 and 100,820.04 is: 139,131.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,702.96 : 256,270.08 = 100,820.04 : x
  2. Step 2: Convert to fraction form
    185,702.96/256,270.08 = 100,820.04/x
  3. Step 3: Cross multiply
    185,702.96x = 256,270.08 × 100,820.04
  4. Step 4: Simplify right side
    185,702.96x = 25,837,159,716.40
  5. Step 5: Solve for x
    x = 25,837,159,716.40/185,702.96
  6. Step 6: Final answer
    x = 139,131.65

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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.