Home / 136,421.20-204,631.80-42,926.95

Finding the Fourth Proportional to 136,421.20, 204,631.80 and 42,926.95

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Solution

The fourth proportional to 136,421.20, 204,631.80 and 42,926.95 is: 64,390.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,421.20 : 204,631.80 = 42,926.95 : x
  2. Step 2: Convert to fraction form
    136,421.20/204,631.80 = 42,926.95/x
  3. Step 3: Cross multiply
    136,421.20x = 204,631.80 × 42,926.95
  4. Step 4: Simplify right side
    136,421.20x = 8,784,219,047.01
  5. Step 5: Solve for x
    x = 8,784,219,047.01/136,421.20
  6. Step 6: Final answer
    x = 64,390.43

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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.