Home / 147,825.30-221,482.80-68,777.40

Finding the Fourth Proportional to 147,825.30, 221,482.80 and 68,777.40

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Solution

The fourth proportional to 147,825.30, 221,482.80 and 68,777.40 is: 103,047.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,825.30 : 221,482.80 = 68,777.40 : x
  2. Step 2: Convert to fraction form
    147,825.30/221,482.80 = 68,777.40/x
  3. Step 3: Cross multiply
    147,825.30x = 221,482.80 × 68,777.40
  4. Step 4: Simplify right side
    147,825.30x = 15,233,011,128.72
  5. Step 5: Solve for x
    x = 15,233,011,128.72/147,825.30
  6. Step 6: Final answer
    x = 103,047.39

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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.