Home / 115,682.02-159,608.82-72,666.16

Finding the Fourth Proportional to 115,682.02, 159,608.82 and 72,666.16

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Solution

The fourth proportional to 115,682.02, 159,608.82 and 72,666.16 is: 100,258.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,682.02 : 159,608.82 = 72,666.16 : x
  2. Step 2: Convert to fraction form
    115,682.02/159,608.82 = 72,666.16/x
  3. Step 3: Cross multiply
    115,682.02x = 159,608.82 × 72,666.16
  4. Step 4: Simplify right side
    115,682.02x = 11,598,160,051.53
  5. Step 5: Solve for x
    x = 11,598,160,051.53/115,682.02
  6. Step 6: Final answer
    x = 100,258.97

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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.