Home / 121,142.93-181,715.08-107,877.41

Finding the Fourth Proportional to 121,142.93, 181,715.08 and 107,877.41

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Solution

The fourth proportional to 121,142.93, 181,715.08 and 107,877.41 is: 161,816.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,142.93 : 181,715.08 = 107,877.41 : x
  2. Step 2: Convert to fraction form
    121,142.93/181,715.08 = 107,877.41/x
  3. Step 3: Cross multiply
    121,142.93x = 181,715.08 × 107,877.41
  4. Step 4: Simplify right side
    121,142.93x = 19,602,952,188.34
  5. Step 5: Solve for x
    x = 19,602,952,188.34/121,142.93
  6. Step 6: Final answer
    x = 161,816.72

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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.