Home / 143,370.36-197,862.17-86,011.83

Finding the Fourth Proportional to 143,370.36, 197,862.17 and 86,011.83

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Solution

The fourth proportional to 143,370.36, 197,862.17 and 86,011.83 is: 118,702.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,370.36 : 197,862.17 = 86,011.83 : x
  2. Step 2: Convert to fraction form
    143,370.36/197,862.17 = 86,011.83/x
  3. Step 3: Cross multiply
    143,370.36x = 197,862.17 × 86,011.83
  4. Step 4: Simplify right side
    143,370.36x = 17,018,486,899.41
  5. Step 5: Solve for x
    x = 17,018,486,899.41/143,370.36
  6. Step 6: Final answer
    x = 118,702.97

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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.