Home / 133,072.90-183,632.84-72,631.50

Finding the Fourth Proportional to 133,072.90, 183,632.84 and 72,631.50

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Solution

The fourth proportional to 133,072.90, 183,632.84 and 72,631.50 is: 100,227.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,072.90 : 183,632.84 = 72,631.50 : x
  2. Step 2: Convert to fraction form
    133,072.90/183,632.84 = 72,631.50/x
  3. Step 3: Cross multiply
    133,072.90x = 183,632.84 × 72,631.50
  4. Step 4: Simplify right side
    133,072.90x = 13,337,528,618.46
  5. Step 5: Solve for x
    x = 13,337,528,618.46/133,072.90
  6. Step 6: Final answer
    x = 100,227.23

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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.