Home / 133,087.42-183,652.79-72,646.06

Finding the Fourth Proportional to 133,087.42, 183,652.79 and 72,646.06

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Solution

The fourth proportional to 133,087.42, 183,652.79 and 72,646.06 is: 100,247.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,087.42 : 183,652.79 = 72,646.06 : x
  2. Step 2: Convert to fraction form
    133,087.42/183,652.79 = 72,646.06/x
  3. Step 3: Cross multiply
    133,087.42x = 183,652.79 × 72,646.06
  4. Step 4: Simplify right side
    133,087.42x = 13,341,651,601.51
  5. Step 5: Solve for x
    x = 13,341,651,601.51/133,087.42
  6. Step 6: Final answer
    x = 100,247.28

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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.