Home / 107,180.36-147,921.08-61,870.50

Finding the Fourth Proportional to 107,180.36, 147,921.08 and 61,870.50

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Solution

The fourth proportional to 107,180.36, 147,921.08 and 61,870.50 is: 85,388.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,180.36 : 147,921.08 = 61,870.50 : x
  2. Step 2: Convert to fraction form
    107,180.36/147,921.08 = 61,870.50/x
  3. Step 3: Cross multiply
    107,180.36x = 147,921.08 × 61,870.50
  4. Step 4: Simplify right side
    107,180.36x = 9,151,951,180.14
  5. Step 5: Solve for x
    x = 9,151,951,180.14/107,180.36
  6. Step 6: Final answer
    x = 85,388.32

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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.