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Finding the Fourth Proportional to 143,059.77, 197,458.76 and 97,756.07

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Solution

The fourth proportional to 143,059.77, 197,458.76 and 97,756.07 is: 134,928.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,059.77 : 197,458.76 = 97,756.07 : x
  2. Step 2: Convert to fraction form
    143,059.77/197,458.76 = 97,756.07/x
  3. Step 3: Cross multiply
    143,059.77x = 197,458.76 × 97,756.07
  4. Step 4: Simplify right side
    143,059.77x = 19,302,791,621.77
  5. Step 5: Solve for x
    x = 19,302,791,621.77/143,059.77
  6. Step 6: Final answer
    x = 134,928.16

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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.