Home / 135,352.04-186,783.55-74,921.39

Finding the Fourth Proportional to 135,352.04, 186,783.55 and 74,921.39

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Solution

The fourth proportional to 135,352.04, 186,783.55 and 74,921.39 is: 103,390.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,352.04 : 186,783.55 = 74,921.39 : x
  2. Step 2: Convert to fraction form
    135,352.04/186,783.55 = 74,921.39/x
  3. Step 3: Cross multiply
    135,352.04x = 186,783.55 × 74,921.39
  4. Step 4: Simplify right side
    135,352.04x = 13,994,083,055.31
  5. Step 5: Solve for x
    x = 13,994,083,055.31/135,352.04
  6. Step 6: Final answer
    x = 103,390.26

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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.