Home / 103,529.64-142,872.36-58,205.10

Finding the Fourth Proportional to 103,529.64, 142,872.36 and 58,205.10

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Solution

The fourth proportional to 103,529.64, 142,872.36 and 58,205.10 is: 80,323.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,529.64 : 142,872.36 = 58,205.10 : x
  2. Step 2: Convert to fraction form
    103,529.64/142,872.36 = 58,205.10/x
  3. Step 3: Cross multiply
    103,529.64x = 142,872.36 × 58,205.10
  4. Step 4: Simplify right side
    103,529.64x = 8,315,900,001.04
  5. Step 5: Solve for x
    x = 8,315,900,001.04/103,529.64
  6. Step 6: Final answer
    x = 80,323.86

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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.