Home / 139,426.60-192,409.28-75,764.40

Finding the Fourth Proportional to 139,426.60, 192,409.28 and 75,764.40

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Solution

The fourth proportional to 139,426.60, 192,409.28 and 75,764.40 is: 104,555.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,426.60 : 192,409.28 = 75,764.40 : x
  2. Step 2: Convert to fraction form
    139,426.60/192,409.28 = 75,764.40/x
  3. Step 3: Cross multiply
    139,426.60x = 192,409.28 × 75,764.40
  4. Step 4: Simplify right side
    139,426.60x = 14,577,773,653.63
  5. Step 5: Solve for x
    x = 14,577,773,653.63/139,426.60
  6. Step 6: Final answer
    x = 104,555.18

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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.