Home / 109,975.60-164,963.40-70,609.60

Finding the Fourth Proportional to 109,975.60, 164,963.40 and 70,609.60

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Solution

The fourth proportional to 109,975.60, 164,963.40 and 70,609.60 is: 105,914.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,975.60 : 164,963.40 = 70,609.60 : x
  2. Step 2: Convert to fraction form
    109,975.60/164,963.40 = 70,609.60/x
  3. Step 3: Cross multiply
    109,975.60x = 164,963.40 × 70,609.60
  4. Step 4: Simplify right side
    109,975.60x = 11,647,999,688.64
  5. Step 5: Solve for x
    x = 11,647,999,688.64/109,975.60
  6. Step 6: Final answer
    x = 105,914.40

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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.