Home / 102,150.16-140,969.11-56,832.36

Finding the Fourth Proportional to 102,150.16, 140,969.11 and 56,832.36

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Solution

The fourth proportional to 102,150.16, 140,969.11 and 56,832.36 is: 78,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,150.16 : 140,969.11 = 56,832.36 : x
  2. Step 2: Convert to fraction form
    102,150.16/140,969.11 = 56,832.36/x
  3. Step 3: Cross multiply
    102,150.16x = 140,969.11 × 56,832.36
  4. Step 4: Simplify right side
    102,150.16x = 8,011,606,504.78
  5. Step 5: Solve for x
    x = 8,011,606,504.78/102,150.16
  6. Step 6: Final answer
    x = 78,429.70

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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.