Home / 120,137.76-180,232.08-35,904.48

Finding the Fourth Proportional to 120,137.76, 180,232.08 and 35,904.48

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Solution

The fourth proportional to 120,137.76, 180,232.08 and 35,904.48 is: 53,864.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,137.76 : 180,232.08 = 35,904.48 : x
  2. Step 2: Convert to fraction form
    120,137.76/180,232.08 = 35,904.48/x
  3. Step 3: Cross multiply
    120,137.76x = 180,232.08 × 35,904.48
  4. Step 4: Simplify right side
    120,137.76x = 6,471,139,111.72
  5. Step 5: Solve for x
    x = 6,471,139,111.72/120,137.76
  6. Step 6: Final answer
    x = 53,864.32

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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.