Home / 120,328.20-166,000.77-72,555.01

Finding the Fourth Proportional to 120,328.20, 166,000.77 and 72,555.01

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Solution

The fourth proportional to 120,328.20, 166,000.77 and 72,555.01 is: 100,094.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,328.20 : 166,000.77 = 72,555.01 : x
  2. Step 2: Convert to fraction form
    120,328.20/166,000.77 = 72,555.01/x
  3. Step 3: Cross multiply
    120,328.20x = 166,000.77 × 72,555.01
  4. Step 4: Simplify right side
    120,328.20x = 12,044,186,697.35
  5. Step 5: Solve for x
    x = 12,044,186,697.35/120,328.20
  6. Step 6: Final answer
    x = 100,094.46

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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.