Home / 147,345.40-221,018.10-53,887.60

Finding the Fourth Proportional to 147,345.40, 221,018.10 and 53,887.60

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Solution

The fourth proportional to 147,345.40, 221,018.10 and 53,887.60 is: 80,831.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,345.40 : 221,018.10 = 53,887.60 : x
  2. Step 2: Convert to fraction form
    147,345.40/221,018.10 = 53,887.60/x
  3. Step 3: Cross multiply
    147,345.40x = 221,018.10 × 53,887.60
  4. Step 4: Simplify right side
    147,345.40x = 11,910,134,965.56
  5. Step 5: Solve for x
    x = 11,910,134,965.56/147,345.40
  6. Step 6: Final answer
    x = 80,831.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.