Home / 109,235.30-163,861.79-30,349.53

Finding the Fourth Proportional to 109,235.30, 163,861.79 and 30,349.53

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Solution

The fourth proportional to 109,235.30, 163,861.79 and 30,349.53 is: 45,526.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,235.30 : 163,861.79 = 30,349.53 : x
  2. Step 2: Convert to fraction form
    109,235.30/163,861.79 = 30,349.53/x
  3. Step 3: Cross multiply
    109,235.30x = 163,861.79 × 30,349.53
  4. Step 4: Simplify right side
    109,235.30x = 4,973,128,159.71
  5. Step 5: Solve for x
    x = 4,973,128,159.71/109,235.30
  6. Step 6: Final answer
    x = 45,526.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.