Home / 102,117.70-140,911.68-56,788.35

Finding the Fourth Proportional to 102,117.70, 140,911.68 and 56,788.35

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Solution

The fourth proportional to 102,117.70, 140,911.68 and 56,788.35 is: 78,361.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,117.70 : 140,911.68 = 56,788.35 : x
  2. Step 2: Convert to fraction form
    102,117.70/140,911.68 = 56,788.35/x
  3. Step 3: Cross multiply
    102,117.70x = 140,911.68 × 56,788.35
  4. Step 4: Simplify right side
    102,117.70x = 8,002,141,802.93
  5. Step 5: Solve for x
    x = 8,002,141,802.93/102,117.70
  6. Step 6: Final answer
    x = 78,361.95

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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.