Home / 109,077.95-163,518.50-75,813.68

Finding the Fourth Proportional to 109,077.95, 163,518.50 and 75,813.68

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Solution

The fourth proportional to 109,077.95, 163,518.50 and 75,813.68 is: 113,652.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,077.95 : 163,518.50 = 75,813.68 : x
  2. Step 2: Convert to fraction form
    109,077.95/163,518.50 = 75,813.68/x
  3. Step 3: Cross multiply
    109,077.95x = 163,518.50 × 75,813.68
  4. Step 4: Simplify right side
    109,077.95x = 12,396,939,233.08
  5. Step 5: Solve for x
    x = 12,396,939,233.08/109,077.95
  6. Step 6: Final answer
    x = 113,652.11

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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.