Home / 139,065.08-191,909.92-75,403.12

Finding the Fourth Proportional to 139,065.08, 191,909.92 and 75,403.12

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Solution

The fourth proportional to 139,065.08, 191,909.92 and 75,403.12 is: 104,056.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,065.08 : 191,909.92 = 75,403.12 : x
  2. Step 2: Convert to fraction form
    139,065.08/191,909.92 = 75,403.12/x
  3. Step 3: Cross multiply
    139,065.08x = 191,909.92 × 75,403.12
  4. Step 4: Simplify right side
    139,065.08x = 14,470,606,726.95
  5. Step 5: Solve for x
    x = 14,470,606,726.95/139,065.08
  6. Step 6: Final answer
    x = 104,056.37

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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.