Home / 112,647.30-168,533.55-73,281.30

Finding the Fourth Proportional to 112,647.30, 168,533.55 and 73,281.30

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Solution

The fourth proportional to 112,647.30, 168,533.55 and 73,281.30 is: 109,637.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,647.30 : 168,533.55 = 73,281.30 : x
  2. Step 2: Convert to fraction form
    112,647.30/168,533.55 = 73,281.30/x
  3. Step 3: Cross multiply
    112,647.30x = 168,533.55 × 73,281.30
  4. Step 4: Simplify right side
    112,647.30x = 12,350,357,637.62
  5. Step 5: Solve for x
    x = 12,350,357,637.62/112,647.30
  6. Step 6: Final answer
    x = 109,637.40

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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.