Home / 156,904.34-216,530.19-85,284.36

Finding the Fourth Proportional to 156,904.34, 216,530.19 and 85,284.36

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Solution

The fourth proportional to 156,904.34, 216,530.19 and 85,284.36 is: 117,693.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,904.34 : 216,530.19 = 85,284.36 : x
  2. Step 2: Convert to fraction form
    156,904.34/216,530.19 = 85,284.36/x
  3. Step 3: Cross multiply
    156,904.34x = 216,530.19 × 85,284.36
  4. Step 4: Simplify right side
    156,904.34x = 18,466,638,674.83
  5. Step 5: Solve for x
    x = 18,466,638,674.83/156,904.34
  6. Step 6: Final answer
    x = 117,693.62

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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.