Home / 145,261.92-200,450.52-81,587.28

Finding the Fourth Proportional to 145,261.92, 200,450.52 and 81,587.28

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Solution

The fourth proportional to 145,261.92, 200,450.52 and 81,587.28 is: 112,584.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,261.92 : 200,450.52 = 81,587.28 : x
  2. Step 2: Convert to fraction form
    145,261.92/200,450.52 = 81,587.28/x
  3. Step 3: Cross multiply
    145,261.92x = 200,450.52 × 81,587.28
  4. Step 4: Simplify right side
    145,261.92x = 16,354,212,701.39
  5. Step 5: Solve for x
    x = 16,354,212,701.39/145,261.92
  6. Step 6: Final answer
    x = 112,584.31

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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.