Home / 186,901.70-280,417.35-81,796.10

Finding the Fourth Proportional to 186,901.70, 280,417.35 and 81,796.10

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Solution

The fourth proportional to 186,901.70, 280,417.35 and 81,796.10 is: 122,722.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,901.70 : 280,417.35 = 81,796.10 : x
  2. Step 2: Convert to fraction form
    186,901.70/280,417.35 = 81,796.10/x
  3. Step 3: Cross multiply
    186,901.70x = 280,417.35 × 81,796.10
  4. Step 4: Simplify right side
    186,901.70x = 22,937,045,602.34
  5. Step 5: Solve for x
    x = 22,937,045,602.34/186,901.70
  6. Step 6: Final answer
    x = 122,722.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.