Home / 105,678.90-158,539.06-39,119.58

Finding the Fourth Proportional to 105,678.90, 158,539.06 and 39,119.58

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Solution

The fourth proportional to 105,678.90, 158,539.06 and 39,119.58 is: 58,687.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,678.90 : 158,539.06 = 39,119.58 : x
  2. Step 2: Convert to fraction form
    105,678.90/158,539.06 = 39,119.58/x
  3. Step 3: Cross multiply
    105,678.90x = 158,539.06 × 39,119.58
  4. Step 4: Simplify right side
    105,678.90x = 6,201,981,440.79
  5. Step 5: Solve for x
    x = 6,201,981,440.79/105,678.90
  6. Step 6: Final answer
    x = 58,687.04

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1.5x scale

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.