Home / 136,987.32-205,497.36-58,091.28

Finding the Fourth Proportional to 136,987.32, 205,497.36 and 58,091.28

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Solution

The fourth proportional to 136,987.32, 205,497.36 and 58,091.28 is: 87,143.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,987.32 : 205,497.36 = 58,091.28 : x
  2. Step 2: Convert to fraction form
    136,987.32/205,497.36 = 58,091.28/x
  3. Step 3: Cross multiply
    136,987.32x = 205,497.36 × 58,091.28
  4. Step 4: Simplify right side
    136,987.32x = 11,937,604,679.02
  5. Step 5: Solve for x
    x = 11,937,604,679.02/136,987.32
  6. Step 6: Final answer
    x = 87,143.87

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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.