Home / 120,981.04-181,353.30-54,437.92

Finding the Fourth Proportional to 120,981.04, 181,353.30 and 54,437.92

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Solution

The fourth proportional to 120,981.04, 181,353.30 and 54,437.92 is: 81,603.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,981.04 : 181,353.30 = 54,437.92 : x
  2. Step 2: Convert to fraction form
    120,981.04/181,353.30 = 54,437.92/x
  3. Step 3: Cross multiply
    120,981.04x = 181,353.30 × 54,437.92
  4. Step 4: Simplify right side
    120,981.04x = 9,872,496,437.14
  5. Step 5: Solve for x
    x = 9,872,496,437.14/120,981.04
  6. Step 6: Final answer
    x = 81,603.67

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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.