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Finding the Fourth Proportional to 132,622.68, 183,018.78 and 72,196.68

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Solution

The fourth proportional to 132,622.68, 183,018.78 and 72,196.68 is: 99,631.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,622.68 : 183,018.78 = 72,196.68 : x
  2. Step 2: Convert to fraction form
    132,622.68/183,018.78 = 72,196.68/x
  3. Step 3: Cross multiply
    132,622.68x = 183,018.78 × 72,196.68
  4. Step 4: Simplify right side
    132,622.68x = 13,213,348,293.65
  5. Step 5: Solve for x
    x = 13,213,348,293.65/132,622.68
  6. Step 6: Final answer
    x = 99,631.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.