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Finding the Fourth Proportional to 133,029.65, 183,574.17 and 72,599.81

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Solution

The fourth proportional to 133,029.65, 183,574.17 and 72,599.81 is: 100,184.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,029.65 : 183,574.17 = 72,599.81 : x
  2. Step 2: Convert to fraction form
    133,029.65/183,574.17 = 72,599.81/x
  3. Step 3: Cross multiply
    133,029.65x = 183,574.17 × 72,599.81
  4. Step 4: Simplify right side
    133,029.65x = 13,327,449,862.91
  5. Step 5: Solve for x
    x = 13,327,449,862.91/133,029.65
  6. Step 6: Final answer
    x = 100,184.06

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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.