Home / 120,062.10-180,096.39-31,313.64

Finding the Fourth Proportional to 120,062.10, 180,096.39 and 31,313.64

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Solution

The fourth proportional to 120,062.10, 180,096.39 and 31,313.64 is: 46,971.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,062.10 : 180,096.39 = 31,313.64 : x
  2. Step 2: Convert to fraction form
    120,062.10/180,096.39 = 31,313.64/x
  3. Step 3: Cross multiply
    120,062.10x = 180,096.39 × 31,313.64
  4. Step 4: Simplify right side
    120,062.10x = 5,639,473,521.76
  5. Step 5: Solve for x
    x = 5,639,473,521.76/120,062.10
  6. Step 6: Final answer
    x = 46,971.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.