Home / 149,139.36-223,643.16-79,002

Finding the Fourth Proportional to 149,139.36, 223,643.16 and 79,002

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Solution

The fourth proportional to 149,139.36, 223,643.16 and 79,002 is: 118,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,139.36 : 223,643.16 = 79,002 : x
  2. Step 2: Convert to fraction form
    149,139.36/223,643.16 = 79,002/x
  3. Step 3: Cross multiply
    149,139.36x = 223,643.16 × 79,002
  4. Step 4: Simplify right side
    149,139.36x = 17,668,256,926.32
  5. Step 5: Solve for x
    x = 17,668,256,926.32/149,139.36
  6. Step 6: Final answer
    x = 118,468.10

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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.