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Finding the Fourth Proportional to 101,710, 140,361.72 and 59,271.04

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Solution

The fourth proportional to 101,710, 140,361.72 and 59,271.04 is: 81,795.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,710 : 140,361.72 = 59,271.04 : x
  2. Step 2: Convert to fraction form
    101,710/140,361.72 = 59,271.04/x
  3. Step 3: Cross multiply
    101,710x = 140,361.72 × 59,271.04
  4. Step 4: Simplify right side
    101,710x = 8,319,385,120.59
  5. Step 5: Solve for x
    x = 8,319,385,120.59/101,710
  6. Step 6: Final answer
    x = 81,795.15

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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.