Home / 132,872.16-183,361.12-72,443.33

Finding the Fourth Proportional to 132,872.16, 183,361.12 and 72,443.33

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Solution

The fourth proportional to 132,872.16, 183,361.12 and 72,443.33 is: 99,970.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,872.16 : 183,361.12 = 72,443.33 : x
  2. Step 2: Convert to fraction form
    132,872.16/183,361.12 = 72,443.33/x
  3. Step 3: Cross multiply
    132,872.16x = 183,361.12 × 72,443.33
  4. Step 4: Simplify right side
    132,872.16x = 13,283,289,715.02
  5. Step 5: Solve for x
    x = 13,283,289,715.02/132,872.16
  6. Step 6: Final answer
    x = 99,970.45

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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.