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Finding the Fourth Proportional to 191,063.61, 286,558.97 and 72,746.91

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Solution

The fourth proportional to 191,063.61, 286,558.97 and 72,746.91 is: 109,106.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,063.61 : 286,558.97 = 72,746.91 : x
  2. Step 2: Convert to fraction form
    191,063.61/286,558.97 = 72,746.91/x
  3. Step 3: Cross multiply
    191,063.61x = 286,558.97 × 72,746.91
  4. Step 4: Simplify right side
    191,063.61x = 20,846,279,236.55
  5. Step 5: Solve for x
    x = 20,846,279,236.55/191,063.61
  6. Step 6: Final answer
    x = 109,106.49

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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.