Home / 147,935.08-221,844.30-85,649.32

Finding the Fourth Proportional to 147,935.08, 221,844.30 and 85,649.32

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Solution

The fourth proportional to 147,935.08, 221,844.30 and 85,649.32 is: 128,440.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,935.08 : 221,844.30 = 85,649.32 : x
  2. Step 2: Convert to fraction form
    147,935.08/221,844.30 = 85,649.32/x
  3. Step 3: Cross multiply
    147,935.08x = 221,844.30 × 85,649.32
  4. Step 4: Simplify right side
    147,935.08x = 19,000,813,440.88
  5. Step 5: Solve for x
    x = 19,000,813,440.88/147,935.08
  6. Step 6: Final answer
    x = 128,440.21

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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.