Home / 143,688.17-198,289.54-83,293.79

Finding the Fourth Proportional to 143,688.17, 198,289.54 and 83,293.79

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Solution

The fourth proportional to 143,688.17, 198,289.54 and 83,293.79 is: 114,945.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,688.17 : 198,289.54 = 83,293.79 : x
  2. Step 2: Convert to fraction form
    143,688.17/198,289.54 = 83,293.79/x
  3. Step 3: Cross multiply
    143,688.17x = 198,289.54 × 83,293.79
  4. Step 4: Simplify right side
    143,688.17x = 16,516,287,303.96
  5. Step 5: Solve for x
    x = 16,516,287,303.96/143,688.17
  6. Step 6: Final answer
    x = 114,945.35

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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.