Home / 106,529.81-147,064.35-66,256.55

Finding the Fourth Proportional to 106,529.81, 147,064.35 and 66,256.55

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Solution

The fourth proportional to 106,529.81, 147,064.35 and 66,256.55 is: 91,467.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,529.81 : 147,064.35 = 66,256.55 : x
  2. Step 2: Convert to fraction form
    106,529.81/147,064.35 = 66,256.55/x
  3. Step 3: Cross multiply
    106,529.81x = 147,064.35 × 66,256.55
  4. Step 4: Simplify right side
    106,529.81x = 9,743,975,723.67
  5. Step 5: Solve for x
    x = 9,743,975,723.67/106,529.81
  6. Step 6: Final answer
    x = 91,467.13

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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.