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Finding the Fourth Proportional to 157,895.20, 218,040.88 and 101,404.98

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Solution

The fourth proportional to 157,895.20, 218,040.88 and 101,404.98 is: 140,032.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,895.20 : 218,040.88 = 101,404.98 : x
  2. Step 2: Convert to fraction form
    157,895.20/218,040.88 = 101,404.98/x
  3. Step 3: Cross multiply
    157,895.20x = 218,040.88 × 101,404.98
  4. Step 4: Simplify right side
    157,895.20x = 22,110,431,075.58
  5. Step 5: Solve for x
    x = 22,110,431,075.58/157,895.20
  6. Step 6: Final answer
    x = 140,032.32

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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.