Home / 145,834.88-201,261.60-81,311.36

Finding the Fourth Proportional to 145,834.88, 201,261.60 and 81,311.36

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Solution

The fourth proportional to 145,834.88, 201,261.60 and 81,311.36 is: 112,214.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,834.88 : 201,261.60 = 81,311.36 : x
  2. Step 2: Convert to fraction form
    145,834.88/201,261.60 = 81,311.36/x
  3. Step 3: Cross multiply
    145,834.88x = 201,261.60 × 81,311.36
  4. Step 4: Simplify right side
    145,834.88x = 16,364,854,411.78
  5. Step 5: Solve for x
    x = 16,364,854,411.78/145,834.88
  6. Step 6: Final answer
    x = 112,214.95

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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.