Home / 143,453.49-216,254.63-133,819.74

Finding the Fourth Proportional to 143,453.49, 216,254.63 and 133,819.74

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Solution

The fourth proportional to 143,453.49, 216,254.63 and 133,819.74 is: 201,731.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,453.49 : 216,254.63 = 133,819.74 : x
  2. Step 2: Convert to fraction form
    143,453.49/216,254.63 = 133,819.74/x
  3. Step 3: Cross multiply
    143,453.49x = 216,254.63 × 133,819.74
  4. Step 4: Simplify right side
    143,453.49x = 28,939,137,691.30
  5. Step 5: Solve for x
    x = 28,939,137,691.30/143,453.49
  6. Step 6: Final answer
    x = 201,731.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.