Home / 117,212.04-161,600.40-74,696.76

Finding the Fourth Proportional to 117,212.04, 161,600.40 and 74,696.76

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Solution

The fourth proportional to 117,212.04, 161,600.40 and 74,696.76 is: 102,984.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,212.04 : 161,600.40 = 74,696.76 : x
  2. Step 2: Convert to fraction form
    117,212.04/161,600.40 = 74,696.76/x
  3. Step 3: Cross multiply
    117,212.04x = 161,600.40 × 74,696.76
  4. Step 4: Simplify right side
    117,212.04x = 12,071,026,294.70
  5. Step 5: Solve for x
    x = 12,071,026,294.70/117,212.04
  6. Step 6: Final answer
    x = 102,984.53

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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.