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Finding the Fourth Proportional to 121,029.99, 167,009.69 and 70,032.57

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Solution

The fourth proportional to 121,029.99, 167,009.69 and 70,032.57 is: 96,638.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,029.99 : 167,009.69 = 70,032.57 : x
  2. Step 2: Convert to fraction form
    121,029.99/167,009.69 = 70,032.57/x
  3. Step 3: Cross multiply
    121,029.99x = 167,009.69 × 70,032.57
  4. Step 4: Simplify right side
    121,029.99x = 11,696,116,620.39
  5. Step 5: Solve for x
    x = 11,696,116,620.39/121,029.99
  6. Step 6: Final answer
    x = 96,638.17

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1.5x scale

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.