Home / 143,570.34-198,109.26-83,140.02

Finding the Fourth Proportional to 143,570.34, 198,109.26 and 83,140.02

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Solution

The fourth proportional to 143,570.34, 198,109.26 and 83,140.02 is: 114,722.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,570.34 : 198,109.26 = 83,140.02 : x
  2. Step 2: Convert to fraction form
    143,570.34/198,109.26 = 83,140.02/x
  3. Step 3: Cross multiply
    143,570.34x = 198,109.26 × 83,140.02
  4. Step 4: Simplify right side
    143,570.34x = 16,470,807,838.59
  5. Step 5: Solve for x
    x = 16,470,807,838.59/143,570.34
  6. Step 6: Final answer
    x = 114,722.91

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1.5x scale

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.