Home / 106,821.72-147,397.86-59,075.42

Finding the Fourth Proportional to 106,821.72, 147,397.86 and 59,075.42

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Solution

The fourth proportional to 106,821.72, 147,397.86 and 59,075.42 is: 81,515.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,821.72 : 147,397.86 = 59,075.42 : x
  2. Step 2: Convert to fraction form
    106,821.72/147,397.86 = 59,075.42/x
  3. Step 3: Cross multiply
    106,821.72x = 147,397.86 × 59,075.42
  4. Step 4: Simplify right side
    106,821.72x = 8,707,589,749.61
  5. Step 5: Solve for x
    x = 8,707,589,749.61/106,821.72
  6. Step 6: Final answer
    x = 81,515.16

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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.