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Finding the Fourth Proportional to 134,041.79, 184,972.12 and 72,785.59

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Solution

The fourth proportional to 134,041.79, 184,972.12 and 72,785.59 is: 100,441.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,041.79 : 184,972.12 = 72,785.59 : x
  2. Step 2: Convert to fraction form
    134,041.79/184,972.12 = 72,785.59/x
  3. Step 3: Cross multiply
    134,041.79x = 184,972.12 × 72,785.59
  4. Step 4: Simplify right side
    134,041.79x = 13,463,304,243.36
  5. Step 5: Solve for x
    x = 13,463,304,243.36/134,041.79
  6. Step 6: Final answer
    x = 100,441.09

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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.