Home / 147,970.40-221,721.84-120,132.32

Finding the Fourth Proportional to 147,970.40, 221,721.84 and 120,132.32

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Solution

The fourth proportional to 147,970.40, 221,721.84 and 120,132.32 is: 180,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,970.40 : 221,721.84 = 120,132.32 : x
  2. Step 2: Convert to fraction form
    147,970.40/221,721.84 = 120,132.32/x
  3. Step 3: Cross multiply
    147,970.40x = 221,721.84 × 120,132.32
  4. Step 4: Simplify right side
    147,970.40x = 26,635,959,033.87
  5. Step 5: Solve for x
    x = 26,635,959,033.87/147,970.40
  6. Step 6: Final answer
    x = 180,008.70

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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.