Home / 180,875.06-249,620.37-100,310.30

Finding the Fourth Proportional to 180,875.06, 249,620.37 and 100,310.30

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Solution

The fourth proportional to 180,875.06, 249,620.37 and 100,310.30 is: 138,435.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,875.06 : 249,620.37 = 100,310.30 : x
  2. Step 2: Convert to fraction form
    180,875.06/249,620.37 = 100,310.30/x
  3. Step 3: Cross multiply
    180,875.06x = 249,620.37 × 100,310.30
  4. Step 4: Simplify right side
    180,875.06x = 25,039,494,200.81
  5. Step 5: Solve for x
    x = 25,039,494,200.81/180,875.06
  6. Step 6: Final answer
    x = 138,435.31

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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.