Home / 103,519.55-155,421.48-53,634.08

Finding the Fourth Proportional to 103,519.55, 155,421.48 and 53,634.08

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Solution

The fourth proportional to 103,519.55, 155,421.48 and 53,634.08 is: 80,524.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,519.55 : 155,421.48 = 53,634.08 : x
  2. Step 2: Convert to fraction form
    103,519.55/155,421.48 = 53,634.08/x
  3. Step 3: Cross multiply
    103,519.55x = 155,421.48 × 53,634.08
  4. Step 4: Simplify right side
    103,519.55x = 8,335,887,314.93
  5. Step 5: Solve for x
    x = 8,335,887,314.93/103,519.55
  6. Step 6: Final answer
    x = 80,524.77

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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.