Home / 158,074.92-218,147.67-86,459.16

Finding the Fourth Proportional to 158,074.92, 218,147.67 and 86,459.16

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Solution

The fourth proportional to 158,074.92, 218,147.67 and 86,459.16 is: 119,315.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,074.92 : 218,147.67 = 86,459.16 : x
  2. Step 2: Convert to fraction form
    158,074.92/218,147.67 = 86,459.16/x
  3. Step 3: Cross multiply
    158,074.92x = 218,147.67 × 86,459.16
  4. Step 4: Simplify right side
    158,074.92x = 18,860,864,304.16
  5. Step 5: Solve for x
    x = 18,860,864,304.16/158,074.92
  6. Step 6: Final answer
    x = 119,315.98

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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.