Home / 109,012.37-163,419.53-38,875.28

Finding the Fourth Proportional to 109,012.37, 163,419.53 and 38,875.28

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Solution

The fourth proportional to 109,012.37, 163,419.53 and 38,875.28 is: 58,277.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,012.37 : 163,419.53 = 38,875.28 : x
  2. Step 2: Convert to fraction form
    109,012.37/163,419.53 = 38,875.28/x
  3. Step 3: Cross multiply
    109,012.37x = 163,419.53 × 38,875.28
  4. Step 4: Simplify right side
    109,012.37x = 6,352,978,974.74
  5. Step 5: Solve for x
    x = 6,352,978,974.74/109,012.37
  6. Step 6: Final answer
    x = 58,277.60

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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.