Home / 130,095.21-179,521.49-79,100.87

Finding the Fourth Proportional to 130,095.21, 179,521.49 and 79,100.87

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Solution

The fourth proportional to 130,095.21, 179,521.49 and 79,100.87 is: 109,153.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,095.21 : 179,521.49 = 79,100.87 : x
  2. Step 2: Convert to fraction form
    130,095.21/179,521.49 = 79,100.87/x
  3. Step 3: Cross multiply
    130,095.21x = 179,521.49 × 79,100.87
  4. Step 4: Simplify right side
    130,095.21x = 14,200,305,372.82
  5. Step 5: Solve for x
    x = 14,200,305,372.82/130,095.21
  6. Step 6: Final answer
    x = 109,153.17

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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.