Home / 112,681.56-168,905.52-70,464.75

Finding the Fourth Proportional to 112,681.56, 168,905.52 and 70,464.75

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Solution

The fourth proportional to 112,681.56, 168,905.52 and 70,464.75 is: 105,624.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,681.56 : 168,905.52 = 70,464.75 : x
  2. Step 2: Convert to fraction form
    112,681.56/168,905.52 = 70,464.75/x
  3. Step 3: Cross multiply
    112,681.56x = 168,905.52 × 70,464.75
  4. Step 4: Simplify right side
    112,681.56x = 11,901,885,240.42
  5. Step 5: Solve for x
    x = 11,901,885,240.42/112,681.56
  6. Step 6: Final answer
    x = 105,624.07

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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.