Home / 121,716.64-167,940.18-70,699.06

Finding the Fourth Proportional to 121,716.64, 167,940.18 and 70,699.06

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Solution

The fourth proportional to 121,716.64, 167,940.18 and 70,699.06 is: 97,547.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,716.64 : 167,940.18 = 70,699.06 : x
  2. Step 2: Convert to fraction form
    121,716.64/167,940.18 = 70,699.06/x
  3. Step 3: Cross multiply
    121,716.64x = 167,940.18 × 70,699.06
  4. Step 4: Simplify right side
    121,716.64x = 11,873,211,669.03
  5. Step 5: Solve for x
    x = 11,873,211,669.03/121,716.64
  6. Step 6: Final answer
    x = 97,547.98

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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.