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Finding the Fourth Proportional to 88,980.39, 133,330.08 and 72,259.05

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Solution

The fourth proportional to 88,980.39, 133,330.08 and 72,259.05 is: 108,274.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,980.39 : 133,330.08 = 72,259.05 : x
  2. Step 2: Convert to fraction form
    88,980.39/133,330.08 = 72,259.05/x
  3. Step 3: Cross multiply
    88,980.39x = 133,330.08 × 72,259.05
  4. Step 4: Simplify right side
    88,980.39x = 9,634,304,917.22
  5. Step 5: Solve for x
    x = 9,634,304,917.22/88,980.39
  6. Step 6: Final answer
    x = 108,274.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.