Home / 134,128.98-201,308.79-77,890.93

Finding the Fourth Proportional to 134,128.98, 201,308.79 and 77,890.93

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Solution

The fourth proportional to 134,128.98, 201,308.79 and 77,890.93 is: 116,903.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,128.98 : 201,308.79 = 77,890.93 : x
  2. Step 2: Convert to fraction form
    134,128.98/201,308.79 = 77,890.93/x
  3. Step 3: Cross multiply
    134,128.98x = 201,308.79 × 77,890.93
  4. Step 4: Simplify right side
    134,128.98x = 15,680,129,791.46
  5. Step 5: Solve for x
    x = 15,680,129,791.46/134,128.98
  6. Step 6: Final answer
    x = 116,903.37

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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.