Home / 132,972.36-183,499.98-76,384.20

Finding the Fourth Proportional to 132,972.36, 183,499.98 and 76,384.20

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Solution

The fourth proportional to 132,972.36, 183,499.98 and 76,384.20 is: 105,409.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,972.36 : 183,499.98 = 76,384.20 : x
  2. Step 2: Convert to fraction form
    132,972.36/183,499.98 = 76,384.20/x
  3. Step 3: Cross multiply
    132,972.36x = 183,499.98 × 76,384.20
  4. Step 4: Simplify right side
    132,972.36x = 14,016,499,172.32
  5. Step 5: Solve for x
    x = 14,016,499,172.32/132,972.36
  6. Step 6: Final answer
    x = 105,409.12

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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.