Home / 136,280.70-204,421.05-100,851.30

Finding the Fourth Proportional to 136,280.70, 204,421.05 and 100,851.30

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Solution

The fourth proportional to 136,280.70, 204,421.05 and 100,851.30 is: 151,276.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,280.70 : 204,421.05 = 100,851.30 : x
  2. Step 2: Convert to fraction form
    136,280.70/204,421.05 = 100,851.30/x
  3. Step 3: Cross multiply
    136,280.70x = 204,421.05 × 100,851.30
  4. Step 4: Simplify right side
    136,280.70x = 20,616,128,639.87
  5. Step 5: Solve for x
    x = 20,616,128,639.87/136,280.70
  6. Step 6: Final answer
    x = 151,276.95

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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.