Home / 109,189.36-163,751.10-42,611.50

Finding the Fourth Proportional to 109,189.36, 163,751.10 and 42,611.50

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Solution

The fourth proportional to 109,189.36, 163,751.10 and 42,611.50 is: 63,904.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,189.36 : 163,751.10 = 42,611.50 : x
  2. Step 2: Convert to fraction form
    109,189.36/163,751.10 = 42,611.50/x
  3. Step 3: Cross multiply
    109,189.36x = 163,751.10 × 42,611.50
  4. Step 4: Simplify right side
    109,189.36x = 6,977,679,997.65
  5. Step 5: Solve for x
    x = 6,977,679,997.65/109,189.36
  6. Step 6: Final answer
    x = 63,904.40

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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.