Home / 158,225.27-218,351.12-86,609.83

Finding the Fourth Proportional to 158,225.27, 218,351.12 and 86,609.83

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Solution

The fourth proportional to 158,225.27, 218,351.12 and 86,609.83 is: 119,521.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,225.27 : 218,351.12 = 86,609.83 : x
  2. Step 2: Convert to fraction form
    158,225.27/218,351.12 = 86,609.83/x
  3. Step 3: Cross multiply
    158,225.27x = 218,351.12 × 86,609.83
  4. Step 4: Simplify right side
    158,225.27x = 18,911,353,383.51
  5. Step 5: Solve for x
    x = 18,911,353,383.51/158,225.27
  6. Step 6: Final answer
    x = 119,521.70

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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.