Home / 158,451.10-218,668.54-90,479.14

Finding the Fourth Proportional to 158,451.10, 218,668.54 and 90,479.14

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Solution

The fourth proportional to 158,451.10, 218,668.54 and 90,479.14 is: 124,864.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,451.10 : 218,668.54 = 90,479.14 : x
  2. Step 2: Convert to fraction form
    158,451.10/218,668.54 = 90,479.14/x
  3. Step 3: Cross multiply
    158,451.10x = 218,668.54 × 90,479.14
  4. Step 4: Simplify right side
    158,451.10x = 19,784,941,444.26
  5. Step 5: Solve for x
    x = 19,784,941,444.26/158,451.10
  6. Step 6: Final answer
    x = 124,864.65

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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.