Home / 109,325.40-163,988.10-39,211.80

Finding the Fourth Proportional to 109,325.40, 163,988.10 and 39,211.80

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Solution

The fourth proportional to 109,325.40, 163,988.10 and 39,211.80 is: 58,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,325.40 : 163,988.10 = 39,211.80 : x
  2. Step 2: Convert to fraction form
    109,325.40/163,988.10 = 39,211.80/x
  3. Step 3: Cross multiply
    109,325.40x = 163,988.10 × 39,211.80
  4. Step 4: Simplify right side
    109,325.40x = 6,430,268,579.58
  5. Step 5: Solve for x
    x = 6,430,268,579.58/109,325.40
  6. Step 6: Final answer
    x = 58,817.70

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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.