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Finding the Fourth Proportional to 97,435.93, 134,472.93 and 81,054.20

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Solution

The fourth proportional to 97,435.93, 134,472.93 and 81,054.20 is: 111,864.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,435.93 : 134,472.93 = 81,054.20 : x
  2. Step 2: Convert to fraction form
    97,435.93/134,472.93 = 81,054.20/x
  3. Step 3: Cross multiply
    97,435.93x = 134,472.93 × 81,054.20
  4. Step 4: Simplify right side
    97,435.93x = 10,899,595,762.81
  5. Step 5: Solve for x
    x = 10,899,595,762.81/97,435.93
  6. Step 6: Final answer
    x = 111,864.23

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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.