Home / 121,301.41-181,099.18-92,688.61

Finding the Fourth Proportional to 121,301.41, 181,099.18 and 92,688.61

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Solution

The fourth proportional to 121,301.41, 181,099.18 and 92,688.61 is: 138,381.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,301.41 : 181,099.18 = 92,688.61 : x
  2. Step 2: Convert to fraction form
    121,301.41/181,099.18 = 92,688.61/x
  3. Step 3: Cross multiply
    121,301.41x = 181,099.18 × 92,688.61
  4. Step 4: Simplify right side
    121,301.41x = 16,785,831,266.34
  5. Step 5: Solve for x
    x = 16,785,831,266.34/121,301.41
  6. Step 6: Final answer
    x = 138,381.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.