Home / 130,418.44-180,061.08-89,650.36

Finding the Fourth Proportional to 130,418.44, 180,061.08 and 89,650.36

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Solution

The fourth proportional to 130,418.44, 180,061.08 and 89,650.36 is: 123,774.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,418.44 : 180,061.08 = 89,650.36 : x
  2. Step 2: Convert to fraction form
    130,418.44/180,061.08 = 89,650.36/x
  3. Step 3: Cross multiply
    130,418.44x = 180,061.08 × 89,650.36
  4. Step 4: Simplify right side
    130,418.44x = 16,142,540,643.99
  5. Step 5: Solve for x
    x = 16,142,540,643.99/130,418.44
  6. Step 6: Final answer
    x = 123,774.99

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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.