Home / 133,111.56-183,693.02-72,682.17

Finding the Fourth Proportional to 133,111.56, 183,693.02 and 72,682.17

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Solution

The fourth proportional to 133,111.56, 183,693.02 and 72,682.17 is: 100,300.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,111.56 : 183,693.02 = 72,682.17 : x
  2. Step 2: Convert to fraction form
    133,111.56/183,693.02 = 72,682.17/x
  3. Step 3: Cross multiply
    133,111.56x = 183,693.02 × 72,682.17
  4. Step 4: Simplify right side
    133,111.56x = 13,351,207,307.45
  5. Step 5: Solve for x
    x = 13,351,207,307.45/133,111.56
  6. Step 6: Final answer
    x = 100,300.89

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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.