Home / 141,964.40-212,946.60-120,855.80

Finding the Fourth Proportional to 141,964.40, 212,946.60 and 120,855.80

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Solution

The fourth proportional to 141,964.40, 212,946.60 and 120,855.80 is: 181,283.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,964.40 : 212,946.60 = 120,855.80 : x
  2. Step 2: Convert to fraction form
    141,964.40/212,946.60 = 120,855.80/x
  3. Step 3: Cross multiply
    141,964.40x = 212,946.60 × 120,855.80
  4. Step 4: Simplify right side
    141,964.40x = 25,735,831,700.28
  5. Step 5: Solve for x
    x = 25,735,831,700.28/141,964.40
  6. Step 6: Final answer
    x = 181,283.70

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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.