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Finding the Fourth Proportional to 162,043.80, 243,033.30 and 77,803.80

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Solution

The fourth proportional to 162,043.80, 243,033.30 and 77,803.80 is: 116,690.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,043.80 : 243,033.30 = 77,803.80 : x
  2. Step 2: Convert to fraction form
    162,043.80/243,033.30 = 77,803.80/x
  3. Step 3: Cross multiply
    162,043.80x = 243,033.30 × 77,803.80
  4. Step 4: Simplify right side
    162,043.80x = 18,908,914,266.54
  5. Step 5: Solve for x
    x = 18,908,914,266.54/162,043.80
  6. Step 6: Final answer
    x = 116,690.14

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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.