Home / 132,857.12-183,339.86-72,425.46

Finding the Fourth Proportional to 132,857.12, 183,339.86 and 72,425.46

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Solution

The fourth proportional to 132,857.12, 183,339.86 and 72,425.46 is: 99,945.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,857.12 : 183,339.86 = 72,425.46 : x
  2. Step 2: Convert to fraction form
    132,857.12/183,339.86 = 72,425.46/x
  3. Step 3: Cross multiply
    132,857.12x = 183,339.86 × 72,425.46
  4. Step 4: Simplify right side
    132,857.12x = 13,278,473,696.84
  5. Step 5: Solve for x
    x = 13,278,473,696.84/132,857.12
  6. Step 6: Final answer
    x = 99,945.52

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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.