Home / 158,225.37-218,351.28-86,609.94

Finding the Fourth Proportional to 158,225.37, 218,351.28 and 86,609.94

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Solution

The fourth proportional to 158,225.37, 218,351.28 and 86,609.94 is: 119,521.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,225.37 : 218,351.28 = 86,609.94 : x
  2. Step 2: Convert to fraction form
    158,225.37/218,351.28 = 86,609.94/x
  3. Step 3: Cross multiply
    158,225.37x = 218,351.28 × 86,609.94
  4. Step 4: Simplify right side
    158,225.37x = 18,911,391,259.72
  5. Step 5: Solve for x
    x = 18,911,391,259.72/158,225.37
  6. Step 6: Final answer
    x = 119,521.86

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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.