Home / 133,071.82-183,639.48-72,642.52

Finding the Fourth Proportional to 133,071.82, 183,639.48 and 72,642.52

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Solution

The fourth proportional to 133,071.82, 183,639.48 and 72,642.52 is: 100,246.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,071.82 : 183,639.48 = 72,642.52 : x
  2. Step 2: Convert to fraction form
    133,071.82/183,639.48 = 72,642.52/x
  3. Step 3: Cross multiply
    133,071.82x = 183,639.48 × 72,642.52
  4. Step 4: Simplify right side
    133,071.82x = 13,340,034,598.69
  5. Step 5: Solve for x
    x = 13,340,034,598.69/133,071.82
  6. Step 6: Final answer
    x = 100,246.88

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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.