Home / 158,342.14-218,503.99-86,708.30

Finding the Fourth Proportional to 158,342.14, 218,503.99 and 86,708.30

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Solution

The fourth proportional to 158,342.14, 218,503.99 and 86,708.30 is: 119,652.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,342.14 : 218,503.99 = 86,708.30 : x
  2. Step 2: Convert to fraction form
    158,342.14/218,503.99 = 86,708.30/x
  3. Step 3: Cross multiply
    158,342.14x = 218,503.99 × 86,708.30
  4. Step 4: Simplify right side
    158,342.14x = 18,946,109,516.12
  5. Step 5: Solve for x
    x = 18,946,109,516.12/158,342.14
  6. Step 6: Final answer
    x = 119,652.98

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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.