Home / 105,711.70-158,564.47-39,150.35

Finding the Fourth Proportional to 105,711.70, 158,564.47 and 39,150.35

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Solution

The fourth proportional to 105,711.70, 158,564.47 and 39,150.35 is: 58,724.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,711.70 : 158,564.47 = 39,150.35 : x
  2. Step 2: Convert to fraction form
    105,711.70/158,564.47 = 39,150.35/x
  3. Step 3: Cross multiply
    105,711.70x = 158,564.47 × 39,150.35
  4. Step 4: Simplify right side
    105,711.70x = 6,207,854,498.06
  5. Step 5: Solve for x
    x = 6,207,854,498.06/105,711.70
  6. Step 6: Final answer
    x = 58,724.38

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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.