Home / 180,990.05-249,729.89-109,374.00

Finding the Fourth Proportional to 180,990.05, 249,729.89 and 109,374.00

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Solution

The fourth proportional to 180,990.05, 249,729.89 and 109,374.00 is: 150,914.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,990.05 : 249,729.89 = 109,374.00 : x
  2. Step 2: Convert to fraction form
    180,990.05/249,729.89 = 109,374.00/x
  3. Step 3: Cross multiply
    180,990.05x = 249,729.89 × 109,374.00
  4. Step 4: Simplify right side
    180,990.05x = 27,313,955,505.50
  5. Step 5: Solve for x
    x = 27,313,955,505.50/180,990.05
  6. Step 6: Final answer
    x = 150,914.13

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1.5x scale

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.