Home / 143,436.96-197,950.32-79,776

Finding the Fourth Proportional to 143,436.96, 197,950.32 and 79,776

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Solution

The fourth proportional to 143,436.96, 197,950.32 and 79,776 is: 110,094.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,436.96 : 197,950.32 = 79,776 : x
  2. Step 2: Convert to fraction form
    143,436.96/197,950.32 = 79,776/x
  3. Step 3: Cross multiply
    143,436.96x = 197,950.32 × 79,776
  4. Step 4: Simplify right side
    143,436.96x = 15,791,684,728.32
  5. Step 5: Solve for x
    x = 15,791,684,728.32/143,436.96
  6. Step 6: Final answer
    x = 110,094.95

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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.