Home / 133,106.79-183,691.16-72,681.27

Finding the Fourth Proportional to 133,106.79, 183,691.16 and 72,681.27

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Solution

The fourth proportional to 133,106.79, 183,691.16 and 72,681.27 is: 100,302.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,106.79 : 183,691.16 = 72,681.27 : x
  2. Step 2: Convert to fraction form
    133,106.79/183,691.16 = 72,681.27/x
  3. Step 3: Cross multiply
    133,106.79x = 183,691.16 × 72,681.27
  4. Step 4: Simplify right side
    133,106.79x = 13,350,906,016.88
  5. Step 5: Solve for x
    x = 13,350,906,016.88/133,106.79
  6. Step 6: Final answer
    x = 100,302.21

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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.