Home / 133,051.25-183,610.73-90,683.80

Finding the Fourth Proportional to 133,051.25, 183,610.73 and 90,683.80

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Solution

The fourth proportional to 133,051.25, 183,610.73 and 90,683.80 is: 125,143.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,051.25 : 183,610.73 = 90,683.80 : x
  2. Step 2: Convert to fraction form
    133,051.25/183,610.73 = 90,683.80/x
  3. Step 3: Cross multiply
    133,051.25x = 183,610.73 × 90,683.80
  4. Step 4: Simplify right side
    133,051.25x = 16,650,518,717.17
  5. Step 5: Solve for x
    x = 16,650,518,717.17/133,051.25
  6. Step 6: Final answer
    x = 125,143.65

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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.