Home / 109,087.40-163,631.10-89,647.40

Finding the Fourth Proportional to 109,087.40, 163,631.10 and 89,647.40

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Solution

The fourth proportional to 109,087.40, 163,631.10 and 89,647.40 is: 134,471.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,087.40 : 163,631.10 = 89,647.40 : x
  2. Step 2: Convert to fraction form
    109,087.40/163,631.10 = 89,647.40/x
  3. Step 3: Cross multiply
    109,087.40x = 163,631.10 × 89,647.40
  4. Step 4: Simplify right side
    109,087.40x = 14,669,102,674.14
  5. Step 5: Solve for x
    x = 14,669,102,674.14/109,087.40
  6. Step 6: Final answer
    x = 134,471.10

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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.