Home / 133,312.47-183,971.30-72,882.15

Finding the Fourth Proportional to 133,312.47, 183,971.30 and 72,882.15

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Solution

The fourth proportional to 133,312.47, 183,971.30 and 72,882.15 is: 100,577.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,312.47 : 183,971.30 = 72,882.15 : x
  2. Step 2: Convert to fraction form
    133,312.47/183,971.30 = 72,882.15/x
  3. Step 3: Cross multiply
    133,312.47x = 183,971.30 × 72,882.15
  4. Step 4: Simplify right side
    133,312.47x = 13,408,223,882.30
  5. Step 5: Solve for x
    x = 13,408,223,882.30/133,312.47
  6. Step 6: Final answer
    x = 100,577.42

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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.