Home / 145,625.59-200,962.91-81,963.40

Finding the Fourth Proportional to 145,625.59, 200,962.91 and 81,963.40

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Solution

The fourth proportional to 145,625.59, 200,962.91 and 81,963.40 is: 113,109.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,625.59 : 200,962.91 = 81,963.40 : x
  2. Step 2: Convert to fraction form
    145,625.59/200,962.91 = 81,963.40/x
  3. Step 3: Cross multiply
    145,625.59x = 200,962.91 × 81,963.40
  4. Step 4: Simplify right side
    145,625.59x = 16,471,601,962.86
  5. Step 5: Solve for x
    x = 16,471,601,962.86/145,625.59
  6. Step 6: Final answer
    x = 113,109.26

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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.