Home / 99,769.07-137,699.06-59,485.38

Finding the Fourth Proportional to 99,769.07, 137,699.06 and 59,485.38

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Solution

The fourth proportional to 99,769.07, 137,699.06 and 59,485.38 is: 82,100.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,769.07 : 137,699.06 = 59,485.38 : x
  2. Step 2: Convert to fraction form
    99,769.07/137,699.06 = 59,485.38/x
  3. Step 3: Cross multiply
    99,769.07x = 137,699.06 × 59,485.38
  4. Step 4: Simplify right side
    99,769.07x = 8,191,080,612.32
  5. Step 5: Solve for x
    x = 8,191,080,612.32/99,769.07
  6. Step 6: Final answer
    x = 82,100.40

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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.