Home / 120,957.02-166,907.32-72,555.74

Finding the Fourth Proportional to 120,957.02, 166,907.32 and 72,555.74

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Solution

The fourth proportional to 120,957.02, 166,907.32 and 72,555.74 is: 100,118.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,957.02 : 166,907.32 = 72,555.74 : x
  2. Step 2: Convert to fraction form
    120,957.02/166,907.32 = 72,555.74/x
  3. Step 3: Cross multiply
    120,957.02x = 166,907.32 × 72,555.74
  4. Step 4: Simplify right side
    120,957.02x = 12,110,083,098.09
  5. Step 5: Solve for x
    x = 12,110,083,098.09/120,957.02
  6. Step 6: Final answer
    x = 100,118.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.