Home / 132,940.03-183,459.41-72,510.66

Finding the Fourth Proportional to 132,940.03, 183,459.41 and 72,510.66

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Solution

The fourth proportional to 132,940.03, 183,459.41 and 72,510.66 is: 100,065.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,940.03 : 183,459.41 = 72,510.66 : x
  2. Step 2: Convert to fraction form
    132,940.03/183,459.41 = 72,510.66/x
  3. Step 3: Cross multiply
    132,940.03x = 183,459.41 × 72,510.66
  4. Step 4: Simplify right side
    132,940.03x = 13,302,762,902.31
  5. Step 5: Solve for x
    x = 13,302,762,902.31/132,940.03
  6. Step 6: Final answer
    x = 100,065.89

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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.