Home / 109,404.60-164,106.90-89,705.40

Finding the Fourth Proportional to 109,404.60, 164,106.90 and 89,705.40

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Solution

The fourth proportional to 109,404.60, 164,106.90 and 89,705.40 is: 134,558.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,404.60 : 164,106.90 = 89,705.40 : x
  2. Step 2: Convert to fraction form
    109,404.60/164,106.90 = 89,705.40/x
  3. Step 3: Cross multiply
    109,404.60x = 164,106.90 × 89,705.40
  4. Step 4: Simplify right side
    109,404.60x = 14,721,275,107.26
  5. Step 5: Solve for x
    x = 14,721,275,107.26/109,404.60
  6. Step 6: Final answer
    x = 134,558.10

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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.