Home / 129,128.63-193,685.24-58,032.90

Finding the Fourth Proportional to 129,128.63, 193,685.24 and 58,032.90

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Solution

The fourth proportional to 129,128.63, 193,685.24 and 58,032.90 is: 87,045.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,128.63 : 193,685.24 = 58,032.90 : x
  2. Step 2: Convert to fraction form
    129,128.63/193,685.24 = 58,032.90/x
  3. Step 3: Cross multiply
    129,128.63x = 193,685.24 × 58,032.90
  4. Step 4: Simplify right side
    129,128.63x = 11,240,116,309.48
  5. Step 5: Solve for x
    x = 11,240,116,309.48/129,128.63
  6. Step 6: Final answer
    x = 87,045.89

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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.