Home / 158,178.24-218,284.34-90,206.28

Finding the Fourth Proportional to 158,178.24, 218,284.34 and 90,206.28

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Solution

The fourth proportional to 158,178.24, 218,284.34 and 90,206.28 is: 124,483.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,178.24 : 218,284.34 = 90,206.28 : x
  2. Step 2: Convert to fraction form
    158,178.24/218,284.34 = 90,206.28/x
  3. Step 3: Cross multiply
    158,178.24x = 218,284.34 × 90,206.28
  4. Step 4: Simplify right side
    158,178.24x = 19,690,617,842.62
  5. Step 5: Solve for x
    x = 19,690,617,842.62/158,178.24
  6. Step 6: Final answer
    x = 124,483.73

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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.