Home / 133,249.44-183,881.04-72,820.20

Finding the Fourth Proportional to 133,249.44, 183,881.04 and 72,820.20

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Solution

The fourth proportional to 133,249.44, 183,881.04 and 72,820.20 is: 100,490.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,249.44 : 183,881.04 = 72,820.20 : x
  2. Step 2: Convert to fraction form
    133,249.44/183,881.04 = 72,820.20/x
  3. Step 3: Cross multiply
    133,249.44x = 183,881.04 × 72,820.20
  4. Step 4: Simplify right side
    133,249.44x = 13,390,254,109.01
  5. Step 5: Solve for x
    x = 13,390,254,109.01/133,249.44
  6. Step 6: Final answer
    x = 100,490.13

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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.