Home / 121,071.49-181,607.42-57,876.77

Finding the Fourth Proportional to 121,071.49, 181,607.42 and 57,876.77

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Solution

The fourth proportional to 121,071.49, 181,607.42 and 57,876.77 is: 86,815.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,071.49 : 181,607.42 = 57,876.77 : x
  2. Step 2: Convert to fraction form
    121,071.49/181,607.42 = 57,876.77/x
  3. Step 3: Cross multiply
    121,071.49x = 181,607.42 × 57,876.77
  4. Step 4: Simplify right side
    121,071.49x = 10,510,851,476.34
  5. Step 5: Solve for x
    x = 10,510,851,476.34/121,071.49
  6. Step 6: Final answer
    x = 86,815.25

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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.