Home / 109,585.60-164,378.40-70,219.60

Finding the Fourth Proportional to 109,585.60, 164,378.40 and 70,219.60

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Solution

The fourth proportional to 109,585.60, 164,378.40 and 70,219.60 is: 105,329.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,585.60 : 164,378.40 = 70,219.60 : x
  2. Step 2: Convert to fraction form
    109,585.60/164,378.40 = 70,219.60/x
  3. Step 3: Cross multiply
    109,585.60x = 164,378.40 × 70,219.60
  4. Step 4: Simplify right side
    109,585.60x = 11,542,585,496.64
  5. Step 5: Solve for x
    x = 11,542,585,496.64/109,585.60
  6. Step 6: Final answer
    x = 105,329.40

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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.