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Finding the Fourth Proportional to 156,886.08, 216,504.21 and 85,266.27

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Solution

The fourth proportional to 156,886.08, 216,504.21 and 85,266.27 is: 117,668.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,886.08 : 216,504.21 = 85,266.27 : x
  2. Step 2: Convert to fraction form
    156,886.08/216,504.21 = 85,266.27/x
  3. Step 3: Cross multiply
    156,886.08x = 216,504.21 × 85,266.27
  4. Step 4: Simplify right side
    156,886.08x = 18,460,506,426.00
  5. Step 5: Solve for x
    x = 18,460,506,426.00/156,886.08
  6. Step 6: Final answer
    x = 117,668.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.