Home / 148,290.38-204,632.64-87,866.60

Finding the Fourth Proportional to 148,290.38, 204,632.64 and 87,866.60

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Solution

The fourth proportional to 148,290.38, 204,632.64 and 87,866.60 is: 121,251.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,290.38 : 204,632.64 = 87,866.60 : x
  2. Step 2: Convert to fraction form
    148,290.38/204,632.64 = 87,866.60/x
  3. Step 3: Cross multiply
    148,290.38x = 204,632.64 × 87,866.60
  4. Step 4: Simplify right side
    148,290.38x = 17,980,374,325.82
  5. Step 5: Solve for x
    x = 17,980,374,325.82/148,290.38
  6. Step 6: Final answer
    x = 121,251.12

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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.