Home / 133,243.08-183,877.86-72,816.27

Finding the Fourth Proportional to 133,243.08, 183,877.86 and 72,816.27

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Solution

The fourth proportional to 133,243.08, 183,877.86 and 72,816.27 is: 100,487.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,243.08 : 183,877.86 = 72,816.27 : x
  2. Step 2: Convert to fraction form
    133,243.08/183,877.86 = 72,816.27/x
  3. Step 3: Cross multiply
    133,243.08x = 183,877.86 × 72,816.27
  4. Step 4: Simplify right side
    133,243.08x = 13,389,299,900.78
  5. Step 5: Solve for x
    x = 13,389,299,900.78/133,243.08
  6. Step 6: Final answer
    x = 100,487.77

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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.