Home / 109,025.70-163,538.55-102,459.30

Finding the Fourth Proportional to 109,025.70, 163,538.55 and 102,459.30

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Solution

The fourth proportional to 109,025.70, 163,538.55 and 102,459.30 is: 153,688.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,025.70 : 163,538.55 = 102,459.30 : x
  2. Step 2: Convert to fraction form
    109,025.70/163,538.55 = 102,459.30/x
  3. Step 3: Cross multiply
    109,025.70x = 163,538.55 × 102,459.30
  4. Step 4: Simplify right side
    109,025.70x = 16,756,045,356.02
  5. Step 5: Solve for x
    x = 16,756,045,356.02/109,025.70
  6. Step 6: Final answer
    x = 153,688.95

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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.