Home / 133,632.40-184,412.55-72,378.56

Finding the Fourth Proportional to 133,632.40, 184,412.55 and 72,378.56

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Solution

The fourth proportional to 133,632.40, 184,412.55 and 72,378.56 is: 99,882.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,632.40 : 184,412.55 = 72,378.56 : x
  2. Step 2: Convert to fraction form
    133,632.40/184,412.55 = 72,378.56/x
  3. Step 3: Cross multiply
    133,632.40x = 184,412.55 × 72,378.56
  4. Step 4: Simplify right side
    133,632.40x = 13,347,514,814.93
  5. Step 5: Solve for x
    x = 13,347,514,814.93/133,632.40
  6. Step 6: Final answer
    x = 99,882.33

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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.