Home / 109,215.18-163,684.41-53,068.14

Finding the Fourth Proportional to 109,215.18, 163,684.41 and 53,068.14

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Solution

The fourth proportional to 109,215.18, 163,684.41 and 53,068.14 is: 79,534.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,215.18 : 163,684.41 = 53,068.14 : x
  2. Step 2: Convert to fraction form
    109,215.18/163,684.41 = 53,068.14/x
  3. Step 3: Cross multiply
    109,215.18x = 163,684.41 × 53,068.14
  4. Step 4: Simplify right side
    109,215.18x = 8,686,427,185.70
  5. Step 5: Solve for x
    x = 8,686,427,185.70/109,215.18
  6. Step 6: Final answer
    x = 79,534.98

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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.