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Finding the Fourth Proportional to 133,295.40, 183,948.01 and 72,866.76

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Solution

The fourth proportional to 133,295.40, 183,948.01 and 72,866.76 is: 100,556.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,295.40 : 183,948.01 = 72,866.76 : x
  2. Step 2: Convert to fraction form
    133,295.40/183,948.01 = 72,866.76/x
  3. Step 3: Cross multiply
    133,295.40x = 183,948.01 × 72,866.76
  4. Step 4: Simplify right side
    133,295.40x = 13,403,695,497.15
  5. Step 5: Solve for x
    x = 13,403,695,497.15/133,295.40
  6. Step 6: Final answer
    x = 100,556.33

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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.