Home / 158,740.46-238,116.18-79,811.66

Finding the Fourth Proportional to 158,740.46, 238,116.18 and 79,811.66

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Solution

The fourth proportional to 158,740.46, 238,116.18 and 79,811.66 is: 119,720.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,740.46 : 238,116.18 = 79,811.66 : x
  2. Step 2: Convert to fraction form
    158,740.46/238,116.18 = 79,811.66/x
  3. Step 3: Cross multiply
    158,740.46x = 238,116.18 × 79,811.66
  4. Step 4: Simplify right side
    158,740.46x = 19,004,447,598.66
  5. Step 5: Solve for x
    x = 19,004,447,598.66/158,740.46
  6. Step 6: Final answer
    x = 119,720.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.