Home / 109,285.18-163,884.56-53,108.64

Finding the Fourth Proportional to 109,285.18, 163,884.56 and 53,108.64

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Solution

The fourth proportional to 109,285.18, 163,884.56 and 53,108.64 is: 79,641.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,285.18 : 163,884.56 = 53,108.64 : x
  2. Step 2: Convert to fraction form
    109,285.18/163,884.56 = 53,108.64/x
  3. Step 3: Cross multiply
    109,285.18x = 163,884.56 × 53,108.64
  4. Step 4: Simplify right side
    109,285.18x = 8,703,686,098.60
  5. Step 5: Solve for x
    x = 8,703,686,098.60/109,285.18
  6. Step 6: Final answer
    x = 79,641.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.