Home / 142,753.95-197,012.37-79,097.67

Finding the Fourth Proportional to 142,753.95, 197,012.37 and 79,097.67

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Solution

The fourth proportional to 142,753.95, 197,012.37 and 79,097.67 is: 109,161.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,753.95 : 197,012.37 = 79,097.67 : x
  2. Step 2: Convert to fraction form
    142,753.95/197,012.37 = 79,097.67/x
  3. Step 3: Cross multiply
    142,753.95x = 197,012.37 × 79,097.67
  4. Step 4: Simplify right side
    142,753.95x = 15,583,219,428.18
  5. Step 5: Solve for x
    x = 15,583,219,428.18/142,753.95
  6. Step 6: Final answer
    x = 109,161.39

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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.