Home / 180,907.14-249,666.78-100,360.60

Finding the Fourth Proportional to 180,907.14, 249,666.78 and 100,360.60

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Solution

The fourth proportional to 180,907.14, 249,666.78 and 100,360.60 is: 138,505.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,907.14 : 249,666.78 = 100,360.60 : x
  2. Step 2: Convert to fraction form
    180,907.14/249,666.78 = 100,360.60/x
  3. Step 3: Cross multiply
    180,907.14x = 249,666.78 × 100,360.60
  4. Step 4: Simplify right side
    180,907.14x = 25,056,707,840.87
  5. Step 5: Solve for x
    x = 25,056,707,840.87/180,907.14
  6. Step 6: Final answer
    x = 138,505.91

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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.