Home / 147,820.92-221,728.25-47,980.95

Finding the Fourth Proportional to 147,820.92, 221,728.25 and 47,980.95

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Solution

The fourth proportional to 147,820.92, 221,728.25 and 47,980.95 is: 71,970.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,820.92 : 221,728.25 = 47,980.95 : x
  2. Step 2: Convert to fraction form
    147,820.92/221,728.25 = 47,980.95/x
  3. Step 3: Cross multiply
    147,820.92x = 221,728.25 × 47,980.95
  4. Step 4: Simplify right side
    147,820.92x = 10,638,731,365.31
  5. Step 5: Solve for x
    x = 10,638,731,365.31/147,820.92
  6. Step 6: Final answer
    x = 71,970.41

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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.