Home / 102,219.12-141,062.36-56,896.12

Finding the Fourth Proportional to 102,219.12, 141,062.36 and 56,896.12

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Solution

The fourth proportional to 102,219.12, 141,062.36 and 56,896.12 is: 78,516.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,219.12 : 141,062.36 = 56,896.12 : x
  2. Step 2: Convert to fraction form
    102,219.12/141,062.36 = 56,896.12/x
  3. Step 3: Cross multiply
    102,219.12x = 141,062.36 × 56,896.12
  4. Step 4: Simplify right side
    102,219.12x = 8,025,900,962.04
  5. Step 5: Solve for x
    x = 8,025,900,962.04/102,219.12
  6. Step 6: Final answer
    x = 78,516.64

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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.