Home / 143,152.80-197,572.41-102,999.48

Finding the Fourth Proportional to 143,152.80, 197,572.41 and 102,999.48

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Solution

The fourth proportional to 143,152.80, 197,572.41 and 102,999.48 is: 142,154.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,152.80 : 197,572.41 = 102,999.48 : x
  2. Step 2: Convert to fraction form
    143,152.80/197,572.41 = 102,999.48/x
  3. Step 3: Cross multiply
    143,152.80x = 197,572.41 × 102,999.48
  4. Step 4: Simplify right side
    143,152.80x = 20,349,855,492.35
  5. Step 5: Solve for x
    x = 20,349,855,492.35/143,152.80
  6. Step 6: Final answer
    x = 142,154.78

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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.