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Finding the Fourth Proportional to 164,492.71, 246,689.38 and 85,563.88

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Solution

The fourth proportional to 164,492.71, 246,689.38 and 85,563.88 is: 128,319.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,492.71 : 246,689.38 = 85,563.88 : x
  2. Step 2: Convert to fraction form
    164,492.71/246,689.38 = 85,563.88/x
  3. Step 3: Cross multiply
    164,492.71x = 246,689.38 × 85,563.88
  4. Step 4: Simplify right side
    164,492.71x = 21,107,700,507.59
  5. Step 5: Solve for x
    x = 21,107,700,507.59/164,492.71
  6. Step 6: Final answer
    x = 128,319.98

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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.