Home / 158,073.90-218,146.30-86,458.16

Finding the Fourth Proportional to 158,073.90, 218,146.30 and 86,458.16

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Solution

The fourth proportional to 158,073.90, 218,146.30 and 86,458.16 is: 119,314.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,073.90 : 218,146.30 = 86,458.16 : x
  2. Step 2: Convert to fraction form
    158,073.90/218,146.30 = 86,458.16/x
  3. Step 3: Cross multiply
    158,073.90x = 218,146.30 × 86,458.16
  4. Step 4: Simplify right side
    158,073.90x = 18,860,527,708.81
  5. Step 5: Solve for x
    x = 18,860,527,708.81/158,073.90
  6. Step 6: Final answer
    x = 119,314.62

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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.