Home / 103,913.24-143,304.53-65,606.23

Finding the Fourth Proportional to 103,913.24, 143,304.53 and 65,606.23

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Solution

The fourth proportional to 103,913.24, 143,304.53 and 65,606.23 is: 90,476.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,913.24 : 143,304.53 = 65,606.23 : x
  2. Step 2: Convert to fraction form
    103,913.24/143,304.53 = 65,606.23/x
  3. Step 3: Cross multiply
    103,913.24x = 143,304.53 × 65,606.23
  4. Step 4: Simplify right side
    103,913.24x = 9,401,669,627.19
  5. Step 5: Solve for x
    x = 9,401,669,627.19/103,913.24
  6. Step 6: Final answer
    x = 90,476.15

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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.