Home / 133,107.28-183,695.49-72,683.55

Finding the Fourth Proportional to 133,107.28, 183,695.49 and 72,683.55

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Solution

The fourth proportional to 133,107.28, 183,695.49 and 72,683.55 is: 100,307.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,107.28 : 183,695.49 = 72,683.55 : x
  2. Step 2: Convert to fraction form
    133,107.28/183,695.49 = 72,683.55/x
  3. Step 3: Cross multiply
    133,107.28x = 183,695.49 × 72,683.55
  4. Step 4: Simplify right side
    133,107.28x = 13,351,640,332.19
  5. Step 5: Solve for x
    x = 13,351,640,332.19/133,107.28
  6. Step 6: Final answer
    x = 100,307.37

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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.