Home / 133,298.39-183,952.15-72,869.76

Finding the Fourth Proportional to 133,298.39, 183,952.15 and 72,869.76

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Solution

The fourth proportional to 133,298.39, 183,952.15 and 72,869.76 is: 100,560.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,298.39 : 183,952.15 = 72,869.76 : x
  2. Step 2: Convert to fraction form
    133,298.39/183,952.15 = 72,869.76/x
  3. Step 3: Cross multiply
    133,298.39x = 183,952.15 × 72,869.76
  4. Step 4: Simplify right side
    133,298.39x = 13,404,548,839.81
  5. Step 5: Solve for x
    x = 13,404,548,839.81/133,298.39
  6. Step 6: Final answer
    x = 100,560.47

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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.