Home / 133,108.68-183,688.57-72,679.13

Finding the Fourth Proportional to 133,108.68, 183,688.57 and 72,679.13

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Solution

The fourth proportional to 133,108.68, 183,688.57 and 72,679.13 is: 100,296.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,108.68 : 183,688.57 = 72,679.13 : x
  2. Step 2: Convert to fraction form
    133,108.68/183,688.57 = 72,679.13/x
  3. Step 3: Cross multiply
    133,108.68x = 183,688.57 × 72,679.13
  4. Step 4: Simplify right side
    133,108.68x = 13,350,325,458.54
  5. Step 5: Solve for x
    x = 13,350,325,458.54/133,108.68
  6. Step 6: Final answer
    x = 100,296.43

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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.