Home / 109,019.70-163,432.35-64,599.30

Finding the Fourth Proportional to 109,019.70, 163,432.35 and 64,599.30

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Solution

The fourth proportional to 109,019.70, 163,432.35 and 64,599.30 is: 96,841.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,019.70 : 163,432.35 = 64,599.30 : x
  2. Step 2: Convert to fraction form
    109,019.70/163,432.35 = 64,599.30/x
  3. Step 3: Cross multiply
    109,019.70x = 163,432.35 × 64,599.30
  4. Step 4: Simplify right side
    109,019.70x = 10,557,615,407.36
  5. Step 5: Solve for x
    x = 10,557,615,407.36/109,019.70
  6. Step 6: Final answer
    x = 96,841.35

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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.