Home / 156,938.36-216,579.18-85,323.29

Finding the Fourth Proportional to 156,938.36, 216,579.18 and 85,323.29

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Solution

The fourth proportional to 156,938.36, 216,579.18 and 85,323.29 is: 117,748.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,938.36 : 216,579.18 = 85,323.29 : x
  2. Step 2: Convert to fraction form
    156,938.36/216,579.18 = 85,323.29/x
  3. Step 3: Cross multiply
    156,938.36x = 216,579.18 × 85,323.29
  4. Step 4: Simplify right side
    156,938.36x = 18,479,248,183.10
  5. Step 5: Solve for x
    x = 18,479,248,183.10/156,938.36
  6. Step 6: Final answer
    x = 117,748.45

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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.