Home / 102,721.24-154,116.89-55,341.19

Finding the Fourth Proportional to 102,721.24, 154,116.89 and 55,341.19

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Solution

The fourth proportional to 102,721.24, 154,116.89 and 55,341.19 is: 83,030.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,721.24 : 154,116.89 = 55,341.19 : x
  2. Step 2: Convert to fraction form
    102,721.24/154,116.89 = 55,341.19/x
  3. Step 3: Cross multiply
    102,721.24x = 154,116.89 × 55,341.19
  4. Step 4: Simplify right side
    102,721.24x = 8,529,012,215.17
  5. Step 5: Solve for x
    x = 8,529,012,215.17/102,721.24
  6. Step 6: Final answer
    x = 83,030.66

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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.