Home / 115,639.14-159,537.02-72,600.34

Finding the Fourth Proportional to 115,639.14, 159,537.02 and 72,600.34

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Solution

The fourth proportional to 115,639.14, 159,537.02 and 72,600.34 is: 100,160.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,639.14 : 159,537.02 = 72,600.34 : x
  2. Step 2: Convert to fraction form
    115,639.14/159,537.02 = 72,600.34/x
  3. Step 3: Cross multiply
    115,639.14x = 159,537.02 × 72,600.34
  4. Step 4: Simplify right side
    115,639.14x = 11,582,441,894.59
  5. Step 5: Solve for x
    x = 11,582,441,894.59/115,639.14
  6. Step 6: Final answer
    x = 100,160.22

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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.