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Finding the Fourth Proportional to 131,838.68, 197,708.64 and 43,068.32

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Solution

The fourth proportional to 131,838.68, 197,708.64 and 43,068.32 is: 64,586.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,838.68 : 197,708.64 = 43,068.32 : x
  2. Step 2: Convert to fraction form
    131,838.68/197,708.64 = 43,068.32/x
  3. Step 3: Cross multiply
    131,838.68x = 197,708.64 × 43,068.32
  4. Step 4: Simplify right side
    131,838.68x = 8,514,978,974.28
  5. Step 5: Solve for x
    x = 8,514,978,974.28/131,838.68
  6. Step 6: Final answer
    x = 64,586.35

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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.