Home / 145,275.18-200,468.97-81,623.58

Finding the Fourth Proportional to 145,275.18, 200,468.97 and 81,623.58

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Solution

The fourth proportional to 145,275.18, 200,468.97 and 81,623.58 is: 112,634.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,275.18 : 200,468.97 = 81,623.58 : x
  2. Step 2: Convert to fraction form
    145,275.18/200,468.97 = 81,623.58/x
  3. Step 3: Cross multiply
    145,275.18x = 200,468.97 × 81,623.58
  4. Step 4: Simplify right side
    145,275.18x = 16,362,995,010.31
  5. Step 5: Solve for x
    x = 16,362,995,010.31/145,275.18
  6. Step 6: Final answer
    x = 112,634.48

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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.