Home / 91,187.64-136,783.08-49,102.20

Finding the Fourth Proportional to 91,187.64, 136,783.08 and 49,102.20

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Solution

The fourth proportional to 91,187.64, 136,783.08 and 49,102.20 is: 73,654.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,187.64 : 136,783.08 = 49,102.20 : x
  2. Step 2: Convert to fraction form
    91,187.64/136,783.08 = 49,102.20/x
  3. Step 3: Cross multiply
    91,187.64x = 136,783.08 × 49,102.20
  4. Step 4: Simplify right side
    91,187.64x = 6,716,350,150.78
  5. Step 5: Solve for x
    x = 6,716,350,150.78/91,187.64
  6. Step 6: Final answer
    x = 73,654.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.