Home / 133,824.40-200,673.04-77,681.72

Finding the Fourth Proportional to 133,824.40, 200,673.04 and 77,681.72

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Solution

The fourth proportional to 133,824.40, 200,673.04 and 77,681.72 is: 116,485.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,824.40 : 200,673.04 = 77,681.72 : x
  2. Step 2: Convert to fraction form
    133,824.40/200,673.04 = 77,681.72/x
  3. Step 3: Cross multiply
    133,824.40x = 200,673.04 × 77,681.72
  4. Step 4: Simplify right side
    133,824.40x = 15,588,626,904.83
  5. Step 5: Solve for x
    x = 15,588,626,904.83/133,824.40
  6. Step 6: Final answer
    x = 116,485.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.