Home / 102,659.13-141,668.04-57,336.60

Finding the Fourth Proportional to 102,659.13, 141,668.04 and 57,336.60

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Solution

The fourth proportional to 102,659.13, 141,668.04 and 57,336.60 is: 79,123.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,659.13 : 141,668.04 = 57,336.60 : x
  2. Step 2: Convert to fraction form
    102,659.13/141,668.04 = 57,336.60/x
  3. Step 3: Cross multiply
    102,659.13x = 141,668.04 × 57,336.60
  4. Step 4: Simplify right side
    102,659.13x = 8,122,763,742.26
  5. Step 5: Solve for x
    x = 8,122,763,742.26/102,659.13
  6. Step 6: Final answer
    x = 79,123.64

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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.