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Finding the Fourth Proportional to 136,455.80, 204,683.70 and 83,894.90

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Solution

The fourth proportional to 136,455.80, 204,683.70 and 83,894.90 is: 125,842.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,455.80 : 204,683.70 = 83,894.90 : x
  2. Step 2: Convert to fraction form
    136,455.80/204,683.70 = 83,894.90/x
  3. Step 3: Cross multiply
    136,455.80x = 204,683.70 × 83,894.90
  4. Step 4: Simplify right side
    136,455.80x = 17,171,918,543.13
  5. Step 5: Solve for x
    x = 17,171,918,543.13/136,455.80
  6. Step 6: Final answer
    x = 125,842.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.