Home / 120,824.08-166,670.02-112,271.20

Finding the Fourth Proportional to 120,824.08, 166,670.02 and 112,271.20

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Solution

The fourth proportional to 120,824.08, 166,670.02 and 112,271.20 is: 154,871.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,824.08 : 166,670.02 = 112,271.20 : x
  2. Step 2: Convert to fraction form
    120,824.08/166,670.02 = 112,271.20/x
  3. Step 3: Cross multiply
    120,824.08x = 166,670.02 × 112,271.20
  4. Step 4: Simplify right side
    120,824.08x = 18,712,243,149.42
  5. Step 5: Solve for x
    x = 18,712,243,149.42/120,824.08
  6. Step 6: Final answer
    x = 154,871.80

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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.