Home / 109,263.36-163,912.28-39,141.12

Finding the Fourth Proportional to 109,263.36, 163,912.28 and 39,141.12

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Solution

The fourth proportional to 109,263.36, 163,912.28 and 39,141.12 is: 58,717.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,263.36 : 163,912.28 = 39,141.12 : x
  2. Step 2: Convert to fraction form
    109,263.36/163,912.28 = 39,141.12/x
  3. Step 3: Cross multiply
    109,263.36x = 163,912.28 × 39,141.12
  4. Step 4: Simplify right side
    109,263.36x = 6,415,710,220.95
  5. Step 5: Solve for x
    x = 6,415,710,220.95/109,263.36
  6. Step 6: Final answer
    x = 58,717.86

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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.