Home / 158,047.75-218,107.62-86,426.24

Finding the Fourth Proportional to 158,047.75, 218,107.62 and 86,426.24

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Solution

The fourth proportional to 158,047.75, 218,107.62 and 86,426.24 is: 119,269.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,047.75 : 218,107.62 = 86,426.24 : x
  2. Step 2: Convert to fraction form
    158,047.75/218,107.62 = 86,426.24/x
  3. Step 3: Cross multiply
    158,047.75x = 218,107.62 × 86,426.24
  4. Step 4: Simplify right side
    158,047.75x = 18,850,220,421.41
  5. Step 5: Solve for x
    x = 18,850,220,421.41/158,047.75
  6. Step 6: Final answer
    x = 119,269.15

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1.5x scale

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.