Home / 102,613.76-154,154.22-74,238.26

Finding the Fourth Proportional to 102,613.76, 154,154.22 and 74,238.26

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Solution

The fourth proportional to 102,613.76, 154,154.22 and 74,238.26 is: 111,526.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,613.76 : 154,154.22 = 74,238.26 : x
  2. Step 2: Convert to fraction form
    102,613.76/154,154.22 = 74,238.26/x
  3. Step 3: Cross multiply
    102,613.76x = 154,154.22 × 74,238.26
  4. Step 4: Simplify right side
    102,613.76x = 11,444,141,064.46
  5. Step 5: Solve for x
    x = 11,444,141,064.46/102,613.76
  6. Step 6: Final answer
    x = 111,526.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.