Home / 143,284.02-197,750.13-86,695.86

Finding the Fourth Proportional to 143,284.02, 197,750.13 and 86,695.86

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Solution

The fourth proportional to 143,284.02, 197,750.13 and 86,695.86 is: 119,651.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,284.02 : 197,750.13 = 86,695.86 : x
  2. Step 2: Convert to fraction form
    143,284.02/197,750.13 = 86,695.86/x
  3. Step 3: Cross multiply
    143,284.02x = 197,750.13 × 86,695.86
  4. Step 4: Simplify right side
    143,284.02x = 17,144,117,585.46
  5. Step 5: Solve for x
    x = 17,144,117,585.46/143,284.02
  6. Step 6: Final answer
    x = 119,651.29

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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.