Home / 132,780.78-183,235.56-72,352.80

Finding the Fourth Proportional to 132,780.78, 183,235.56 and 72,352.80

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Solution

The fourth proportional to 132,780.78, 183,235.56 and 72,352.80 is: 99,845.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,780.78 : 183,235.56 = 72,352.80 : x
  2. Step 2: Convert to fraction form
    132,780.78/183,235.56 = 72,352.80/x
  3. Step 3: Cross multiply
    132,780.78x = 183,235.56 × 72,352.80
  4. Step 4: Simplify right side
    132,780.78x = 13,257,605,825.57
  5. Step 5: Solve for x
    x = 13,257,605,825.57/132,780.78
  6. Step 6: Final answer
    x = 99,845.82

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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.