Home / 109,220.40-163,830.60-39,106.80

Finding the Fourth Proportional to 109,220.40, 163,830.60 and 39,106.80

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Solution

The fourth proportional to 109,220.40, 163,830.60 and 39,106.80 is: 58,660.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,220.40 : 163,830.60 = 39,106.80 : x
  2. Step 2: Convert to fraction form
    109,220.40/163,830.60 = 39,106.80/x
  3. Step 3: Cross multiply
    109,220.40x = 163,830.60 × 39,106.80
  4. Step 4: Simplify right side
    109,220.40x = 6,406,890,508.08
  5. Step 5: Solve for x
    x = 6,406,890,508.08/109,220.40
  6. Step 6: Final answer
    x = 58,660.20

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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.