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Finding the Fourth Proportional to 137,458.20, 206,187.30 and 43,973.40

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Solution

The fourth proportional to 137,458.20, 206,187.30 and 43,973.40 is: 65,960.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,458.20 : 206,187.30 = 43,973.40 : x
  2. Step 2: Convert to fraction form
    137,458.20/206,187.30 = 43,973.40/x
  3. Step 3: Cross multiply
    137,458.20x = 206,187.30 × 43,973.40
  4. Step 4: Simplify right side
    137,458.20x = 9,066,756,617.82
  5. Step 5: Solve for x
    x = 9,066,756,617.82/137,458.20
  6. Step 6: Final answer
    x = 65,960.10

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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.