Home / 145,856.82-201,281.22-81,325.29

Finding the Fourth Proportional to 145,856.82, 201,281.22 and 81,325.29

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Solution

The fourth proportional to 145,856.82, 201,281.22 and 81,325.29 is: 112,228.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,856.82 : 201,281.22 = 81,325.29 : x
  2. Step 2: Convert to fraction form
    145,856.82/201,281.22 = 81,325.29/x
  3. Step 3: Cross multiply
    145,856.82x = 201,281.22 × 81,325.29
  4. Step 4: Simplify right side
    145,856.82x = 16,369,253,588.05
  5. Step 5: Solve for x
    x = 16,369,253,588.05/145,856.82
  6. Step 6: Final answer
    x = 112,228.24

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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.