Home / 120,938.24-181,206.48-42,009.68

Finding the Fourth Proportional to 120,938.24, 181,206.48 and 42,009.68

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Solution

The fourth proportional to 120,938.24, 181,206.48 and 42,009.68 is: 62,944.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,938.24 : 181,206.48 = 42,009.68 : x
  2. Step 2: Convert to fraction form
    120,938.24/181,206.48 = 42,009.68/x
  3. Step 3: Cross multiply
    120,938.24x = 181,206.48 × 42,009.68
  4. Step 4: Simplify right side
    120,938.24x = 7,612,426,238.73
  5. Step 5: Solve for x
    x = 7,612,426,238.73/120,938.24
  6. Step 6: Final answer
    x = 62,944.74

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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.