Home / 106,644.72-147,161.16-61,320.36

Finding the Fourth Proportional to 106,644.72, 147,161.16 and 61,320.36

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Solution

The fourth proportional to 106,644.72, 147,161.16 and 61,320.36 is: 84,617.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,644.72 : 147,161.16 = 61,320.36 : x
  2. Step 2: Convert to fraction form
    106,644.72/147,161.16 = 61,320.36/x
  3. Step 3: Cross multiply
    106,644.72x = 147,161.16 × 61,320.36
  4. Step 4: Simplify right side
    106,644.72x = 9,023,975,309.22
  5. Step 5: Solve for x
    x = 9,023,975,309.22/106,644.72
  6. Step 6: Final answer
    x = 84,617.18

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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.