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Finding the Fourth Proportional to 114,690.40, 172,006.80 and 40,801.12

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Solution

The fourth proportional to 114,690.40, 172,006.80 and 40,801.12 is: 61,191.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,690.40 : 172,006.80 = 40,801.12 : x
  2. Step 2: Convert to fraction form
    114,690.40/172,006.80 = 40,801.12/x
  3. Step 3: Cross multiply
    114,690.40x = 172,006.80 × 40,801.12
  4. Step 4: Simplify right side
    114,690.40x = 7,018,070,087.62
  5. Step 5: Solve for x
    x = 7,018,070,087.62/114,690.40
  6. Step 6: Final answer
    x = 61,191.43

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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.