Home / 120,972.94-181,463.46-42,087.94

Finding the Fourth Proportional to 120,972.94, 181,463.46 and 42,087.94

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Solution

The fourth proportional to 120,972.94, 181,463.46 and 42,087.94 is: 63,133.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,972.94 : 181,463.46 = 42,087.94 : x
  2. Step 2: Convert to fraction form
    120,972.94/181,463.46 = 42,087.94/x
  3. Step 3: Cross multiply
    120,972.94x = 181,463.46 × 42,087.94
  4. Step 4: Simplify right side
    120,972.94x = 7,637,423,216.67
  5. Step 5: Solve for x
    x = 7,637,423,216.67/120,972.94
  6. Step 6: Final answer
    x = 63,133.32

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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.