Home / 180,987.60-249,533.28-129,366.48

Finding the Fourth Proportional to 180,987.60, 249,533.28 and 129,366.48

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Solution

The fourth proportional to 180,987.60, 249,533.28 and 129,366.48 is: 178,361.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,987.60 : 249,533.28 = 129,366.48 : x
  2. Step 2: Convert to fraction form
    180,987.60/249,533.28 = 129,366.48/x
  3. Step 3: Cross multiply
    180,987.60x = 249,533.28 × 129,366.48
  4. Step 4: Simplify right side
    180,987.60x = 32,281,242,076.45
  5. Step 5: Solve for x
    x = 32,281,242,076.45/180,987.60
  6. Step 6: Final answer
    x = 178,361.62

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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.