Home / 121,136.54-181,705.59-42,250.46

Finding the Fourth Proportional to 121,136.54, 181,705.59 and 42,250.46

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Solution

The fourth proportional to 121,136.54, 181,705.59 and 42,250.46 is: 63,375.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,136.54 : 181,705.59 = 42,250.46 : x
  2. Step 2: Convert to fraction form
    121,136.54/181,705.59 = 42,250.46/x
  3. Step 3: Cross multiply
    121,136.54x = 181,705.59 × 42,250.46
  4. Step 4: Simplify right side
    121,136.54x = 7,677,144,762.07
  5. Step 5: Solve for x
    x = 7,677,144,762.07/121,136.54
  6. Step 6: Final answer
    x = 63,375.96

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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.