Home / 119,086.46-164,347.62-78,730.10

Finding the Fourth Proportional to 119,086.46, 164,347.62 and 78,730.10

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Solution

The fourth proportional to 119,086.46, 164,347.62 and 78,730.10 is: 108,653.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,086.46 : 164,347.62 = 78,730.10 : x
  2. Step 2: Convert to fraction form
    119,086.46/164,347.62 = 78,730.10/x
  3. Step 3: Cross multiply
    119,086.46x = 164,347.62 × 78,730.10
  4. Step 4: Simplify right side
    119,086.46x = 12,939,104,557.36
  5. Step 5: Solve for x
    x = 12,939,104,557.36/119,086.46
  6. Step 6: Final answer
    x = 108,653.03

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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.