Home / 108,711.86-163,378.83-53,346.74

Finding the Fourth Proportional to 108,711.86, 163,378.83 and 53,346.74

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Solution

The fourth proportional to 108,711.86, 163,378.83 and 53,346.74 is: 80,172.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,711.86 : 163,378.83 = 53,346.74 : x
  2. Step 2: Convert to fraction form
    108,711.86/163,378.83 = 53,346.74/x
  3. Step 3: Cross multiply
    108,711.86x = 163,378.83 × 53,346.74
  4. Step 4: Simplify right side
    108,711.86x = 8,715,727,965.51
  5. Step 5: Solve for x
    x = 8,715,727,965.51/108,711.86
  6. Step 6: Final answer
    x = 80,172.74

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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.