Home / 132,707.57-183,137.63-72,278.48

Finding the Fourth Proportional to 132,707.57, 183,137.63 and 72,278.48

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Solution

The fourth proportional to 132,707.57, 183,137.63 and 72,278.48 is: 99,744.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,707.57 : 183,137.63 = 72,278.48 : x
  2. Step 2: Convert to fraction form
    132,707.57/183,137.63 = 72,278.48/x
  3. Step 3: Cross multiply
    132,707.57x = 183,137.63 × 72,278.48
  4. Step 4: Simplify right side
    132,707.57x = 13,236,909,623.65
  5. Step 5: Solve for x
    x = 13,236,909,623.65/132,707.57
  6. Step 6: Final answer
    x = 99,744.95

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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.