Home / 156,904.30-216,528.21-85,284.13

Finding the Fourth Proportional to 156,904.30, 216,528.21 and 85,284.13

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Solution

The fourth proportional to 156,904.30, 216,528.21 and 85,284.13 is: 117,692.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,904.30 : 216,528.21 = 85,284.13 : x
  2. Step 2: Convert to fraction form
    156,904.30/216,528.21 = 85,284.13/x
  3. Step 3: Cross multiply
    156,904.30x = 216,528.21 × 85,284.13
  4. Step 4: Simplify right side
    156,904.30x = 18,466,420,010.31
  5. Step 5: Solve for x
    x = 18,466,420,010.31/156,904.30
  6. Step 6: Final answer
    x = 117,692.25

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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.