Home / 120,145.37-180,270.77-57,011.13

Finding the Fourth Proportional to 120,145.37, 180,270.77 and 57,011.13

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Solution

The fourth proportional to 120,145.37, 180,270.77 and 57,011.13 is: 85,541.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,145.37 : 180,270.77 = 57,011.13 : x
  2. Step 2: Convert to fraction form
    120,145.37/180,270.77 = 57,011.13/x
  3. Step 3: Cross multiply
    120,145.37x = 180,270.77 × 57,011.13
  4. Step 4: Simplify right side
    120,145.37x = 10,277,440,018.61
  5. Step 5: Solve for x
    x = 10,277,440,018.61/120,145.37
  6. Step 6: Final answer
    x = 85,541.71

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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.