Home / 158,909.06-219,293.49-86,311.22

Finding the Fourth Proportional to 158,909.06, 219,293.49 and 86,311.22

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Solution

The fourth proportional to 158,909.06, 219,293.49 and 86,311.22 is: 119,108.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,909.06 : 219,293.49 = 86,311.22 : x
  2. Step 2: Convert to fraction form
    158,909.06/219,293.49 = 86,311.22/x
  3. Step 3: Cross multiply
    158,909.06x = 219,293.49 × 86,311.22
  4. Step 4: Simplify right side
    158,909.06x = 18,927,487,563.49
  5. Step 5: Solve for x
    x = 18,927,487,563.49/158,909.06
  6. Step 6: Final answer
    x = 119,108.92

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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.