Home / 156,903.08-216,527.70-85,283.27

Finding the Fourth Proportional to 156,903.08, 216,527.70 and 85,283.27

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Solution

The fourth proportional to 156,903.08, 216,527.70 and 85,283.27 is: 117,691.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,903.08 : 216,527.70 = 85,283.27 : x
  2. Step 2: Convert to fraction form
    156,903.08/216,527.70 = 85,283.27/x
  3. Step 3: Cross multiply
    156,903.08x = 216,527.70 × 85,283.27
  4. Step 4: Simplify right side
    156,903.08x = 18,466,190,301.58
  5. Step 5: Solve for x
    x = 18,466,190,301.58/156,903.08
  6. Step 6: Final answer
    x = 117,691.70

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1.5x scale

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.