Home / 120,920.62-181,381.35-42,035.50

Finding the Fourth Proportional to 120,920.62, 181,381.35 and 42,035.50

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Solution

The fourth proportional to 120,920.62, 181,381.35 and 42,035.50 is: 63,053.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,920.62 : 181,381.35 = 42,035.50 : x
  2. Step 2: Convert to fraction form
    120,920.62/181,381.35 = 42,035.50/x
  3. Step 3: Cross multiply
    120,920.62x = 181,381.35 × 42,035.50
  4. Step 4: Simplify right side
    120,920.62x = 7,624,455,737.93
  5. Step 5: Solve for x
    x = 7,624,455,737.93/120,920.62
  6. Step 6: Final answer
    x = 63,053.40

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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.