Home / 139,435.32-192,421.80-75,773.46

Finding the Fourth Proportional to 139,435.32, 192,421.80 and 75,773.46

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Solution

The fourth proportional to 139,435.32, 192,421.80 and 75,773.46 is: 104,567.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,435.32 : 192,421.80 = 75,773.46 : x
  2. Step 2: Convert to fraction form
    139,435.32/192,421.80 = 75,773.46/x
  3. Step 3: Cross multiply
    139,435.32x = 192,421.80 × 75,773.46
  4. Step 4: Simplify right side
    139,435.32x = 14,580,465,565.43
  5. Step 5: Solve for x
    x = 14,580,465,565.43/139,435.32
  6. Step 6: Final answer
    x = 104,567.95

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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.