Home / 158,588.20-218,853.30-90,614.08

Finding the Fourth Proportional to 158,588.20, 218,853.30 and 90,614.08

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Solution

The fourth proportional to 158,588.20, 218,853.30 and 90,614.08 is: 125,048.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,588.20 : 218,853.30 = 90,614.08 : x
  2. Step 2: Convert to fraction form
    158,588.20/218,853.30 = 90,614.08/x
  3. Step 3: Cross multiply
    158,588.20x = 218,853.30 × 90,614.08
  4. Step 4: Simplify right side
    158,588.20x = 19,831,190,434.46
  5. Step 5: Solve for x
    x = 19,831,190,434.46/158,588.20
  6. Step 6: Final answer
    x = 125,048.34

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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.