Home / 130,860.32-180,405.84-88,351.52

Finding the Fourth Proportional to 130,860.32, 180,405.84 and 88,351.52

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Solution

The fourth proportional to 130,860.32, 180,405.84 and 88,351.52 is: 121,802.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,860.32 : 180,405.84 = 88,351.52 : x
  2. Step 2: Convert to fraction form
    130,860.32/180,405.84 = 88,351.52/x
  3. Step 3: Cross multiply
    130,860.32x = 180,405.84 × 88,351.52
  4. Step 4: Simplify right side
    130,860.32x = 15,939,130,180.88
  5. Step 5: Solve for x
    x = 15,939,130,180.88/130,860.32
  6. Step 6: Final answer
    x = 121,802.62

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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.