Home / 103,987.07-143,502.16-56,240.40

Finding the Fourth Proportional to 103,987.07, 143,502.16 and 56,240.40

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Solution

The fourth proportional to 103,987.07, 143,502.16 and 56,240.40 is: 77,611.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,987.07 : 143,502.16 = 56,240.40 : x
  2. Step 2: Convert to fraction form
    103,987.07/143,502.16 = 56,240.40/x
  3. Step 3: Cross multiply
    103,987.07x = 143,502.16 × 56,240.40
  4. Step 4: Simplify right side
    103,987.07x = 8,070,618,879.26
  5. Step 5: Solve for x
    x = 8,070,618,879.26/103,987.07
  6. Step 6: Final answer
    x = 77,611.75

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