Home / 156,739.08-216,301.38-85,119.72

Finding the Fourth Proportional to 156,739.08, 216,301.38 and 85,119.72

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Solution

The fourth proportional to 156,739.08, 216,301.38 and 85,119.72 is: 117,466.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,739.08 : 216,301.38 = 85,119.72 : x
  2. Step 2: Convert to fraction form
    156,739.08/216,301.38 = 85,119.72/x
  3. Step 3: Cross multiply
    156,739.08x = 216,301.38 × 85,119.72
  4. Step 4: Simplify right side
    156,739.08x = 18,411,512,901.21
  5. Step 5: Solve for x
    x = 18,411,512,901.21/156,739.08
  6. Step 6: Final answer
    x = 117,466.00

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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.