Home / 121,412.46-181,962.82-58,137.77

Finding the Fourth Proportional to 121,412.46, 181,962.82 and 58,137.77

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Solution

The fourth proportional to 121,412.46, 181,962.82 and 58,137.77 is: 87,132.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,412.46 : 181,962.82 = 58,137.77 : x
  2. Step 2: Convert to fraction form
    121,412.46/181,962.82 = 58,137.77/x
  3. Step 3: Cross multiply
    121,412.46x = 181,962.82 × 58,137.77
  4. Step 4: Simplify right side
    121,412.46x = 10,578,912,577.71
  5. Step 5: Solve for x
    x = 10,578,912,577.71/121,412.46
  6. Step 6: Final answer
    x = 87,132.02

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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.