Home / 158,171.18-218,276.25-86,551.19

Finding the Fourth Proportional to 158,171.18, 218,276.25 and 86,551.19

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Solution

The fourth proportional to 158,171.18, 218,276.25 and 86,551.19 is: 119,440.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,171.18 : 218,276.25 = 86,551.19 : x
  2. Step 2: Convert to fraction form
    158,171.18/218,276.25 = 86,551.19/x
  3. Step 3: Cross multiply
    158,171.18x = 218,276.25 × 86,551.19
  4. Step 4: Simplify right side
    158,171.18x = 18,892,068,094.86
  5. Step 5: Solve for x
    x = 18,892,068,094.86/158,171.18
  6. Step 6: Final answer
    x = 119,440.65

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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.