Home / 145,247.68-200,441.82-81,605.98

Finding the Fourth Proportional to 145,247.68, 200,441.82 and 81,605.98

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Solution

The fourth proportional to 145,247.68, 200,441.82 and 81,605.98 is: 112,616.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,247.68 : 200,441.82 = 81,605.98 : x
  2. Step 2: Convert to fraction form
    145,247.68/200,441.82 = 81,605.98/x
  3. Step 3: Cross multiply
    145,247.68x = 200,441.82 × 81,605.98
  4. Step 4: Simplify right side
    145,247.68x = 16,357,251,154.08
  5. Step 5: Solve for x
    x = 16,357,251,154.08/145,247.68
  6. Step 6: Final answer
    x = 112,616.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.