Home / 104,987.88-144,886.32-57,242.16

Finding the Fourth Proportional to 104,987.88, 144,886.32 and 57,242.16

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Solution

The fourth proportional to 104,987.88, 144,886.32 and 57,242.16 is: 78,995.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,987.88 : 144,886.32 = 57,242.16 : x
  2. Step 2: Convert to fraction form
    104,987.88/144,886.32 = 57,242.16/x
  3. Step 3: Cross multiply
    104,987.88x = 144,886.32 × 57,242.16
  4. Step 4: Simplify right side
    104,987.88x = 8,293,605,911.25
  5. Step 5: Solve for x
    x = 8,293,605,911.25/104,987.88
  6. Step 6: Final answer
    x = 78,995.84

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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.