Home / 145,143.44-200,319.96-88,587.68

Finding the Fourth Proportional to 145,143.44, 200,319.96 and 88,587.68

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Solution

The fourth proportional to 145,143.44, 200,319.96 and 88,587.68 is: 122,264.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,143.44 : 200,319.96 = 88,587.68 : x
  2. Step 2: Convert to fraction form
    145,143.44/200,319.96 = 88,587.68/x
  3. Step 3: Cross multiply
    145,143.44x = 200,319.96 × 88,587.68
  4. Step 4: Simplify right side
    145,143.44x = 17,745,880,514.09
  5. Step 5: Solve for x
    x = 17,745,880,514.09/145,143.44
  6. Step 6: Final answer
    x = 122,264.43

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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.