Home / 113,656.81-170,534.37-61,004.78

Finding the Fourth Proportional to 113,656.81, 170,534.37 and 61,004.78

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Solution

The fourth proportional to 113,656.81, 170,534.37 and 61,004.78 is: 91,533.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,656.81 : 170,534.37 = 61,004.78 : x
  2. Step 2: Convert to fraction form
    113,656.81/170,534.37 = 61,004.78/x
  3. Step 3: Cross multiply
    113,656.81x = 170,534.37 × 61,004.78
  4. Step 4: Simplify right side
    113,656.81x = 10,403,411,724.29
  5. Step 5: Solve for x
    x = 10,403,411,724.29/113,656.81
  6. Step 6: Final answer
    x = 91,533.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.