Home / 116,629.84-160,933.80-65,645.20

Finding the Fourth Proportional to 116,629.84, 160,933.80 and 65,645.20

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Solution

The fourth proportional to 116,629.84, 160,933.80 and 65,645.20 is: 90,581.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,629.84 : 160,933.80 = 65,645.20 : x
  2. Step 2: Convert to fraction form
    116,629.84/160,933.80 = 65,645.20/x
  3. Step 3: Cross multiply
    116,629.84x = 160,933.80 × 65,645.20
  4. Step 4: Simplify right side
    116,629.84x = 10,564,531,487.76
  5. Step 5: Solve for x
    x = 10,564,531,487.76/116,629.84
  6. Step 6: Final answer
    x = 90,581.72

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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.