Home / 102,110.56-140,901.78-56,781.22

Finding the Fourth Proportional to 102,110.56, 140,901.78 and 56,781.22

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Solution

The fourth proportional to 102,110.56, 140,901.78 and 56,781.22 is: 78,352.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,110.56 : 140,901.78 = 56,781.22 : x
  2. Step 2: Convert to fraction form
    102,110.56/140,901.78 = 56,781.22/x
  3. Step 3: Cross multiply
    102,110.56x = 140,901.78 × 56,781.22
  4. Step 4: Simplify right side
    102,110.56x = 8,000,574,616.32
  5. Step 5: Solve for x
    x = 8,000,574,616.32/102,110.56
  6. Step 6: Final answer
    x = 78,352.08

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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.