Home / 151,968.40-209,724.24-91,558

Finding the Fourth Proportional to 151,968.40, 209,724.24 and 91,558

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Solution

The fourth proportional to 151,968.40, 209,724.24 and 91,558 is: 126,354.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,968.40 : 209,724.24 = 91,558 : x
  2. Step 2: Convert to fraction form
    151,968.40/209,724.24 = 91,558/x
  3. Step 3: Cross multiply
    151,968.40x = 209,724.24 × 91,558
  4. Step 4: Simplify right side
    151,968.40x = 19,201,931,965.92
  5. Step 5: Solve for x
    x = 19,201,931,965.92/151,968.40
  6. Step 6: Final answer
    x = 126,354.77

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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.