Home / 154,072.32-212,617.26-86,090.28

Finding the Fourth Proportional to 154,072.32, 212,617.26 and 86,090.28

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Solution

The fourth proportional to 154,072.32, 212,617.26 and 86,090.28 is: 118,803.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,072.32 : 212,617.26 = 86,090.28 : x
  2. Step 2: Convert to fraction form
    154,072.32/212,617.26 = 86,090.28/x
  3. Step 3: Cross multiply
    154,072.32x = 212,617.26 × 86,090.28
  4. Step 4: Simplify right side
    154,072.32x = 18,304,279,446.23
  5. Step 5: Solve for x
    x = 18,304,279,446.23/154,072.32
  6. Step 6: Final answer
    x = 118,803.17

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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.