Home / 147,848.10-221,772.15-68,970.30

Finding the Fourth Proportional to 147,848.10, 221,772.15 and 68,970.30

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Solution

The fourth proportional to 147,848.10, 221,772.15 and 68,970.30 is: 103,455.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,848.10 : 221,772.15 = 68,970.30 : x
  2. Step 2: Convert to fraction form
    147,848.10/221,772.15 = 68,970.30/x
  3. Step 3: Cross multiply
    147,848.10x = 221,772.15 × 68,970.30
  4. Step 4: Simplify right side
    147,848.10x = 15,295,691,717.15
  5. Step 5: Solve for x
    x = 15,295,691,717.15/147,848.10
  6. Step 6: Final answer
    x = 103,455.45

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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.