Home / 126,374.40-174,424.32-78,647.04

Finding the Fourth Proportional to 126,374.40, 174,424.32 and 78,647.04

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Solution

The fourth proportional to 126,374.40, 174,424.32 and 78,647.04 is: 108,550.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,374.40 : 174,424.32 = 78,647.04 : x
  2. Step 2: Convert to fraction form
    126,374.40/174,424.32 = 78,647.04/x
  3. Step 3: Cross multiply
    126,374.40x = 174,424.32 × 78,647.04
  4. Step 4: Simplify right side
    126,374.40x = 13,717,956,472.01
  5. Step 5: Solve for x
    x = 13,717,956,472.01/126,374.40
  6. Step 6: Final answer
    x = 108,550.12

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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.