Home / 223,534.18-308,464.70-128,047.03

Finding the Fourth Proportional to 223,534.18, 308,464.70 and 128,047.03

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Solution

The fourth proportional to 223,534.18, 308,464.70 and 128,047.03 is: 176,697.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,534.18 : 308,464.70 = 128,047.03 : x
  2. Step 2: Convert to fraction form
    223,534.18/308,464.70 = 128,047.03/x
  3. Step 3: Cross multiply
    223,534.18x = 308,464.70 × 128,047.03
  4. Step 4: Simplify right side
    223,534.18x = 39,497,988,694.84
  5. Step 5: Solve for x
    x = 39,497,988,694.84/223,534.18
  6. Step 6: Final answer
    x = 176,697.76

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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.