Home / 133,132.42-183,721.81-72,703.07

Finding the Fourth Proportional to 133,132.42, 183,721.81 and 72,703.07

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Solution

The fourth proportional to 133,132.42, 183,721.81 and 72,703.07 is: 100,329.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,132.42 : 183,721.81 = 72,703.07 : x
  2. Step 2: Convert to fraction form
    133,132.42/183,721.81 = 72,703.07/x
  3. Step 3: Cross multiply
    133,132.42x = 183,721.81 × 72,703.07
  4. Step 4: Simplify right side
    133,132.42x = 13,357,139,612.96
  5. Step 5: Solve for x
    x = 13,357,139,612.96/133,132.42
  6. Step 6: Final answer
    x = 100,329.73

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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.