Home / 133,127.22-183,708.18-72,685.80

Finding the Fourth Proportional to 133,127.22, 183,708.18 and 72,685.80

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Solution

The fourth proportional to 133,127.22, 183,708.18 and 72,685.80 is: 100,302.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,127.22 : 183,708.18 = 72,685.80 : x
  2. Step 2: Convert to fraction form
    133,127.22/183,708.18 = 72,685.80/x
  3. Step 3: Cross multiply
    133,127.22x = 183,708.18 × 72,685.80
  4. Step 4: Simplify right side
    133,127.22x = 13,352,976,029.84
  5. Step 5: Solve for x
    x = 13,352,976,029.84/133,127.22
  6. Step 6: Final answer
    x = 100,302.37

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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.