Home / 161,875.90-222,880.41-137,629.18

Finding the Fourth Proportional to 161,875.90, 222,880.41 and 137,629.18

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Solution

The fourth proportional to 161,875.90, 222,880.41 and 137,629.18 is: 189,496.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,875.90 : 222,880.41 = 137,629.18 : x
  2. Step 2: Convert to fraction form
    161,875.90/222,880.41 = 137,629.18/x
  3. Step 3: Cross multiply
    161,875.90x = 222,880.41 × 137,629.18
  4. Step 4: Simplify right side
    161,875.90x = 30,674,848,066.36
  5. Step 5: Solve for x
    x = 30,674,848,066.36/161,875.90
  6. Step 6: Final answer
    x = 189,496.08

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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.