Home / 133,011.28-183,554.91-72,581.74

Finding the Fourth Proportional to 133,011.28, 183,554.91 and 72,581.74

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Solution

The fourth proportional to 133,011.28, 183,554.91 and 72,581.74 is: 100,162.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,011.28 : 183,554.91 = 72,581.74 : x
  2. Step 2: Convert to fraction form
    133,011.28/183,554.91 = 72,581.74/x
  3. Step 3: Cross multiply
    133,011.28x = 183,554.91 × 72,581.74
  4. Step 4: Simplify right side
    133,011.28x = 13,322,734,294.46
  5. Step 5: Solve for x
    x = 13,322,734,294.46/133,011.28
  6. Step 6: Final answer
    x = 100,162.44

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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.