Home / 106,729.03-147,317.07-61,439.01

Finding the Fourth Proportional to 106,729.03, 147,317.07 and 61,439.01

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Solution

The fourth proportional to 106,729.03, 147,317.07 and 61,439.01 is: 84,803.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,729.03 : 147,317.07 = 61,439.01 : x
  2. Step 2: Convert to fraction form
    106,729.03/147,317.07 = 61,439.01/x
  3. Step 3: Cross multiply
    106,729.03x = 147,317.07 × 61,439.01
  4. Step 4: Simplify right side
    106,729.03x = 9,051,014,936.90
  5. Step 5: Solve for x
    x = 9,051,014,936.90/106,729.03
  6. Step 6: Final answer
    x = 84,803.68

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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.