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Finding the Fourth Proportional to 101,475.02, 140,042.53 and 56,154.91

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Solution

The fourth proportional to 101,475.02, 140,042.53 and 56,154.91 is: 77,497.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,475.02 : 140,042.53 = 56,154.91 : x
  2. Step 2: Convert to fraction form
    101,475.02/140,042.53 = 56,154.91/x
  3. Step 3: Cross multiply
    101,475.02x = 140,042.53 × 56,154.91
  4. Step 4: Simplify right side
    101,475.02x = 7,864,075,668.32
  5. Step 5: Solve for x
    x = 7,864,075,668.32/101,475.02
  6. Step 6: Final answer
    x = 77,497.65

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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.