Home / 109,210.28-163,885.38-53,019.77

Finding the Fourth Proportional to 109,210.28, 163,885.38 and 53,019.77

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Solution

The fourth proportional to 109,210.28, 163,885.38 and 53,019.77 is: 79,563.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,210.28 : 163,885.38 = 53,019.77 : x
  2. Step 2: Convert to fraction form
    109,210.28/163,885.38 = 53,019.77/x
  3. Step 3: Cross multiply
    109,210.28x = 163,885.38 × 53,019.77
  4. Step 4: Simplify right side
    109,210.28x = 8,689,164,135.71
  5. Step 5: Solve for x
    x = 8,689,164,135.71/109,210.28
  6. Step 6: Final answer
    x = 79,563.61

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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.