Home / 147,825.20-221,737.80-42,647.60

Finding the Fourth Proportional to 147,825.20, 221,737.80 and 42,647.60

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Solution

The fourth proportional to 147,825.20, 221,737.80 and 42,647.60 is: 63,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,825.20 : 221,737.80 = 42,647.60 : x
  2. Step 2: Convert to fraction form
    147,825.20/221,737.80 = 42,647.60/x
  3. Step 3: Cross multiply
    147,825.20x = 221,737.80 × 42,647.60
  4. Step 4: Simplify right side
    147,825.20x = 9,456,584,999.28
  5. Step 5: Solve for x
    x = 9,456,584,999.28/147,825.20
  6. Step 6: Final answer
    x = 63,971.40

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1.5x scale

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.