Home / 133,419.39-184,117.25-72,989.34

Finding the Fourth Proportional to 133,419.39, 184,117.25 and 72,989.34

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Solution

The fourth proportional to 133,419.39, 184,117.25 and 72,989.34 is: 100,724.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,419.39 : 184,117.25 = 72,989.34 : x
  2. Step 2: Convert to fraction form
    133,419.39/184,117.25 = 72,989.34/x
  3. Step 3: Cross multiply
    133,419.39x = 184,117.25 × 72,989.34
  4. Step 4: Simplify right side
    133,419.39x = 13,438,596,195.17
  5. Step 5: Solve for x
    x = 13,438,596,195.17/133,419.39
  6. Step 6: Final answer
    x = 100,724.46

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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.