Home / 135,886.68-203,830.02-42,399.72

Finding the Fourth Proportional to 135,886.68, 203,830.02 and 42,399.72

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Solution

The fourth proportional to 135,886.68, 203,830.02 and 42,399.72 is: 63,599.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,886.68 : 203,830.02 = 42,399.72 : x
  2. Step 2: Convert to fraction form
    135,886.68/203,830.02 = 42,399.72/x
  3. Step 3: Cross multiply
    135,886.68x = 203,830.02 × 42,399.72
  4. Step 4: Simplify right side
    135,886.68x = 8,642,335,775.59
  5. Step 5: Solve for x
    x = 8,642,335,775.59/135,886.68
  6. Step 6: Final answer
    x = 63,599.58

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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.