Home / 133,289.68-183,944.70-72,864.42

Finding the Fourth Proportional to 133,289.68, 183,944.70 and 72,864.42

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Solution

The fourth proportional to 133,289.68, 183,944.70 and 72,864.42 is: 100,555.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,289.68 : 183,944.70 = 72,864.42 : x
  2. Step 2: Convert to fraction form
    133,289.68/183,944.70 = 72,864.42/x
  3. Step 3: Cross multiply
    133,289.68x = 183,944.70 × 72,864.42
  4. Step 4: Simplify right side
    133,289.68x = 13,403,023,877.57
  5. Step 5: Solve for x
    x = 13,403,023,877.57/133,289.68
  6. Step 6: Final answer
    x = 100,555.60

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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.