Home / 109,011.36-163,586.40-38,889.12

Finding the Fourth Proportional to 109,011.36, 163,586.40 and 38,889.12

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Solution

The fourth proportional to 109,011.36, 163,586.40 and 38,889.12 is: 58,358.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,011.36 : 163,586.40 = 38,889.12 : x
  2. Step 2: Convert to fraction form
    109,011.36/163,586.40 = 38,889.12/x
  3. Step 3: Cross multiply
    109,011.36x = 163,586.40 × 38,889.12
  4. Step 4: Simplify right side
    109,011.36x = 6,361,731,139.97
  5. Step 5: Solve for x
    x = 6,361,731,139.97/109,011.36
  6. Step 6: Final answer
    x = 58,358.42

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1.5x scale

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.