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Finding the Fourth Proportional to 170,883, 235,816.02 and 99,303.30

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Solution

The fourth proportional to 170,883, 235,816.02 and 99,303.30 is: 137,037.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,883 : 235,816.02 = 99,303.30 : x
  2. Step 2: Convert to fraction form
    170,883/235,816.02 = 99,303.30/x
  3. Step 3: Cross multiply
    170,883x = 235,816.02 × 99,303.30
  4. Step 4: Simplify right side
    170,883x = 23,417,308,978.87
  5. Step 5: Solve for x
    x = 23,417,308,978.87/170,883
  6. Step 6: Final answer
    x = 137,037.09

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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.