Home / 145,692.24-201,061.49-81,161.40

Finding the Fourth Proportional to 145,692.24, 201,061.49 and 81,161.40

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Solution

The fourth proportional to 145,692.24, 201,061.49 and 81,161.40 is: 112,006.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,692.24 : 201,061.49 = 81,161.40 : x
  2. Step 2: Convert to fraction form
    145,692.24/201,061.49 = 81,161.40/x
  3. Step 3: Cross multiply
    145,692.24x = 201,061.49 × 81,161.40
  4. Step 4: Simplify right side
    145,692.24x = 16,318,432,014.49
  5. Step 5: Solve for x
    x = 16,318,432,014.49/145,692.24
  6. Step 6: Final answer
    x = 112,006.19

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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.