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Finding the Fourth Proportional to 139,117.80, 208,555.20 and 94,600.20

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Solution

The fourth proportional to 139,117.80, 208,555.20 and 94,600.20 is: 141,817.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,117.80 : 208,555.20 = 94,600.20 : x
  2. Step 2: Convert to fraction form
    139,117.80/208,555.20 = 94,600.20/x
  3. Step 3: Cross multiply
    139,117.80x = 208,555.20 × 94,600.20
  4. Step 4: Simplify right side
    139,117.80x = 19,729,363,631.04
  5. Step 5: Solve for x
    x = 19,729,363,631.04/139,117.80
  6. Step 6: Final answer
    x = 141,817.68

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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.