Home / 143,953.50-198,602.28-83,490.24

Finding the Fourth Proportional to 143,953.50, 198,602.28 and 83,490.24

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Solution

The fourth proportional to 143,953.50, 198,602.28 and 83,490.24 is: 115,185.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,953.50 : 198,602.28 = 83,490.24 : x
  2. Step 2: Convert to fraction form
    143,953.50/198,602.28 = 83,490.24/x
  3. Step 3: Cross multiply
    143,953.50x = 198,602.28 × 83,490.24
  4. Step 4: Simplify right side
    143,953.50x = 16,581,352,021.75
  5. Step 5: Solve for x
    x = 16,581,352,021.75/143,953.50
  6. Step 6: Final answer
    x = 115,185.47

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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.