Home / 121,112.61-167,029.05-84,795.45

Finding the Fourth Proportional to 121,112.61, 167,029.05 and 84,795.45

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Solution

The fourth proportional to 121,112.61, 167,029.05 and 84,795.45 is: 116,943.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,112.61 : 167,029.05 = 84,795.45 : x
  2. Step 2: Convert to fraction form
    121,112.61/167,029.05 = 84,795.45/x
  3. Step 3: Cross multiply
    121,112.61x = 167,029.05 × 84,795.45
  4. Step 4: Simplify right side
    121,112.61x = 14,163,303,457.82
  5. Step 5: Solve for x
    x = 14,163,303,457.82/121,112.61
  6. Step 6: Final answer
    x = 116,943.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.