Home / 158,284.72-218,426.16-86,663.44

Finding the Fourth Proportional to 158,284.72, 218,426.16 and 86,663.44

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Solution

The fourth proportional to 158,284.72, 218,426.16 and 86,663.44 is: 119,591.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,284.72 : 218,426.16 = 86,663.44 : x
  2. Step 2: Convert to fraction form
    158,284.72/218,426.16 = 86,663.44/x
  3. Step 3: Cross multiply
    158,284.72x = 218,426.16 × 86,663.44
  4. Step 4: Simplify right side
    158,284.72x = 18,929,562,411.59
  5. Step 5: Solve for x
    x = 18,929,562,411.59/158,284.72
  6. Step 6: Final answer
    x = 119,591.85

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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.