Home / 133,243.26-183,878.10-72,816.45

Finding the Fourth Proportional to 133,243.26, 183,878.10 and 72,816.45

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Solution

The fourth proportional to 133,243.26, 183,878.10 and 72,816.45 is: 100,488.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,243.26 : 183,878.10 = 72,816.45 : x
  2. Step 2: Convert to fraction form
    133,243.26/183,878.10 = 72,816.45/x
  3. Step 3: Cross multiply
    133,243.26x = 183,878.10 × 72,816.45
  4. Step 4: Simplify right side
    133,243.26x = 13,389,350,474.75
  5. Step 5: Solve for x
    x = 13,389,350,474.75/133,243.26
  6. Step 6: Final answer
    x = 100,488.01

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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.