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Finding the Fourth Proportional to 145,003.80, 200,092.14 and 88,403.88

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Solution

The fourth proportional to 145,003.80, 200,092.14 and 88,403.88 is: 121,989.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,003.80 : 200,092.14 = 88,403.88 : x
  2. Step 2: Convert to fraction form
    145,003.80/200,092.14 = 88,403.88/x
  3. Step 3: Cross multiply
    145,003.80x = 200,092.14 × 88,403.88
  4. Step 4: Simplify right side
    145,003.80x = 17,688,921,533.50
  5. Step 5: Solve for x
    x = 17,688,921,533.50/145,003.80
  6. Step 6: Final answer
    x = 121,989.37

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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.