Home / 121,411.46-181,961.33-58,136.77

Finding the Fourth Proportional to 121,411.46, 181,961.33 and 58,136.77

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Solution

The fourth proportional to 121,411.46, 181,961.33 and 58,136.77 is: 87,130.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,411.46 : 181,961.33 = 58,136.77 : x
  2. Step 2: Convert to fraction form
    121,411.46/181,961.33 = 58,136.77/x
  3. Step 3: Cross multiply
    121,411.46x = 181,961.33 × 58,136.77
  4. Step 4: Simplify right side
    121,411.46x = 10,578,643,245.52
  5. Step 5: Solve for x
    x = 10,578,643,245.52/121,411.46
  6. Step 6: Final answer
    x = 87,130.52

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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.