Home / 109,083.20-163,606.28-30,178.98

Finding the Fourth Proportional to 109,083.20, 163,606.28 and 30,178.98

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Solution

The fourth proportional to 109,083.20, 163,606.28 and 30,178.98 is: 45,263.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,083.20 : 163,606.28 = 30,178.98 : x
  2. Step 2: Convert to fraction form
    109,083.20/163,606.28 = 30,178.98/x
  3. Step 3: Cross multiply
    109,083.20x = 163,606.28 × 30,178.98
  4. Step 4: Simplify right side
    109,083.20x = 4,937,470,501.10
  5. Step 5: Solve for x
    x = 4,937,470,501.10/109,083.20
  6. Step 6: Final answer
    x = 45,263.35

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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.