Home / 161,513.70-222,893.28-89,901.60

Finding the Fourth Proportional to 161,513.70, 222,893.28 and 89,901.60

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Solution

The fourth proportional to 161,513.70, 222,893.28 and 89,901.60 is: 124,066.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,513.70 : 222,893.28 = 89,901.60 : x
  2. Step 2: Convert to fraction form
    161,513.70/222,893.28 = 89,901.60/x
  3. Step 3: Cross multiply
    161,513.70x = 222,893.28 × 89,901.60
  4. Step 4: Simplify right side
    161,513.70x = 20,038,462,501.25
  5. Step 5: Solve for x
    x = 20,038,462,501.25/161,513.70
  6. Step 6: Final answer
    x = 124,066.64

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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.