Home / 133,108.03-183,696.53-72,684.30

Finding the Fourth Proportional to 133,108.03, 183,696.53 and 72,684.30

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Solution

The fourth proportional to 133,108.03, 183,696.53 and 72,684.30 is: 100,308.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,108.03 : 183,696.53 = 72,684.30 : x
  2. Step 2: Convert to fraction form
    133,108.03/183,696.53 = 72,684.30/x
  3. Step 3: Cross multiply
    133,108.03x = 183,696.53 × 72,684.30
  4. Step 4: Simplify right side
    133,108.03x = 13,351,853,695.48
  5. Step 5: Solve for x
    x = 13,351,853,695.48/133,108.03
  6. Step 6: Final answer
    x = 100,308.40

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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.