Home / 158,090.46-218,170.89-90,118.14

Finding the Fourth Proportional to 158,090.46, 218,170.89 and 90,118.14

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Solution

The fourth proportional to 158,090.46, 218,170.89 and 90,118.14 is: 124,366.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,090.46 : 218,170.89 = 90,118.14 : x
  2. Step 2: Convert to fraction form
    158,090.46/218,170.89 = 90,118.14/x
  3. Step 3: Cross multiply
    158,090.46x = 218,170.89 × 90,118.14
  4. Step 4: Simplify right side
    158,090.46x = 19,661,154,808.94
  5. Step 5: Solve for x
    x = 19,661,154,808.94/158,090.46
  6. Step 6: Final answer
    x = 124,366.48

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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.