Home / 102,305.28-141,185.12-56,366.81

Finding the Fourth Proportional to 102,305.28, 141,185.12 and 56,366.81

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Solution

The fourth proportional to 102,305.28, 141,185.12 and 56,366.81 is: 77,788.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,305.28 : 141,185.12 = 56,366.81 : x
  2. Step 2: Convert to fraction form
    102,305.28/141,185.12 = 56,366.81/x
  3. Step 3: Cross multiply
    102,305.28x = 141,185.12 × 56,366.81
  4. Step 4: Simplify right side
    102,305.28x = 7,958,154,833.87
  5. Step 5: Solve for x
    x = 7,958,154,833.87/102,305.28
  6. Step 6: Final answer
    x = 77,788.31

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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.