Home / 145,266.20-200,486.08-81,616.29

Finding the Fourth Proportional to 145,266.20, 200,486.08 and 81,616.29

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Solution

The fourth proportional to 145,266.20, 200,486.08 and 81,616.29 is: 112,641.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,266.20 : 200,486.08 = 81,616.29 : x
  2. Step 2: Convert to fraction form
    145,266.20/200,486.08 = 81,616.29/x
  3. Step 3: Cross multiply
    145,266.20x = 200,486.08 × 81,616.29
  4. Step 4: Simplify right side
    145,266.20x = 16,362,930,139.38
  5. Step 5: Solve for x
    x = 16,362,930,139.38/145,266.20
  6. Step 6: Final answer
    x = 112,641.00

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1.5x scale

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.