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Finding the Fourth Proportional to 101,859, 140,558.94 and 56,537.88

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Solution

The fourth proportional to 101,859, 140,558.94 and 56,537.88 is: 78,018.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,859 : 140,558.94 = 56,537.88 : x
  2. Step 2: Convert to fraction form
    101,859/140,558.94 = 56,537.88/x
  3. Step 3: Cross multiply
    101,859x = 140,558.94 × 56,537.88
  4. Step 4: Simplify right side
    101,859x = 7,946,904,482.65
  5. Step 5: Solve for x
    x = 7,946,904,482.65/101,859
  6. Step 6: Final answer
    x = 78,018.68

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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.