Home / 104,987.08-144,878.00-61,980.43

Finding the Fourth Proportional to 104,987.08, 144,878.00 and 61,980.43

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Solution

The fourth proportional to 104,987.08, 144,878.00 and 61,980.43 is: 85,530.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,987.08 : 144,878.00 = 61,980.43 : x
  2. Step 2: Convert to fraction form
    104,987.08/144,878.00 = 61,980.43/x
  3. Step 3: Cross multiply
    104,987.08x = 144,878.00 × 61,980.43
  4. Step 4: Simplify right side
    104,987.08x = 8,979,600,788.87
  5. Step 5: Solve for x
    x = 8,979,600,788.87/104,987.08
  6. Step 6: Final answer
    x = 85,530.53

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1.5x scale

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.