Home / 100,763.08-151,139.12-30,636.92

Finding the Fourth Proportional to 100,763.08, 151,139.12 and 30,636.92

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Solution

The fourth proportional to 100,763.08, 151,139.12 and 30,636.92 is: 45,953.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,763.08 : 151,139.12 = 30,636.92 : x
  2. Step 2: Convert to fraction form
    100,763.08/151,139.12 = 30,636.92/x
  3. Step 3: Cross multiply
    100,763.08x = 151,139.12 × 30,636.92
  4. Step 4: Simplify right side
    100,763.08x = 4,630,437,128.31
  5. Step 5: Solve for x
    x = 4,630,437,128.31/100,763.08
  6. Step 6: Final answer
    x = 45,953.71

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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.