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Finding the Fourth Proportional to 133,237.44, 183,864.48 and 72,808.20

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Solution

The fourth proportional to 133,237.44, 183,864.48 and 72,808.20 is: 100,473.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,237.44 : 183,864.48 = 72,808.20 : x
  2. Step 2: Convert to fraction form
    133,237.44/183,864.48 = 72,808.20/x
  3. Step 3: Cross multiply
    133,237.44x = 183,864.48 × 72,808.20
  4. Step 4: Simplify right side
    133,237.44x = 13,386,841,832.74
  5. Step 5: Solve for x
    x = 13,386,841,832.74/133,237.44
  6. Step 6: Final answer
    x = 100,473.57

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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.