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Finding the Fourth Proportional to 191,753.21, 264,628.47 and 106,870.88

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Solution

The fourth proportional to 191,753.21, 264,628.47 and 106,870.88 is: 147,486.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,753.21 : 264,628.47 = 106,870.88 : x
  2. Step 2: Convert to fraction form
    191,753.21/264,628.47 = 106,870.88/x
  3. Step 3: Cross multiply
    191,753.21x = 264,628.47 × 106,870.88
  4. Step 4: Simplify right side
    191,753.21x = 28,281,076,138.81
  5. Step 5: Solve for x
    x = 28,281,076,138.81/191,753.21
  6. Step 6: Final answer
    x = 147,486.85

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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.