Home / 145,008.16-200,135.33-84,578.80

Finding the Fourth Proportional to 145,008.16, 200,135.33 and 84,578.80

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Solution

The fourth proportional to 145,008.16, 200,135.33 and 84,578.80 is: 116,732.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,008.16 : 200,135.33 = 84,578.80 : x
  2. Step 2: Convert to fraction form
    145,008.16/200,135.33 = 84,578.80/x
  3. Step 3: Cross multiply
    145,008.16x = 200,135.33 × 84,578.80
  4. Step 4: Simplify right side
    145,008.16x = 16,927,206,126.45
  5. Step 5: Solve for x
    x = 16,927,206,126.45/145,008.16
  6. Step 6: Final answer
    x = 116,732.79

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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.