Home / 154,047.02-212,589.21-86,071.48

Finding the Fourth Proportional to 154,047.02, 212,589.21 and 86,071.48

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Solution

The fourth proportional to 154,047.02, 212,589.21 and 86,071.48 is: 118,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,047.02 : 212,589.21 = 86,071.48 : x
  2. Step 2: Convert to fraction form
    154,047.02/212,589.21 = 86,071.48/x
  3. Step 3: Cross multiply
    154,047.02x = 212,589.21 × 86,071.48
  4. Step 4: Simplify right side
    154,047.02x = 18,297,867,243.87
  5. Step 5: Solve for x
    x = 18,297,867,243.87/154,047.02
  6. Step 6: Final answer
    x = 118,781.06

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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.