Home / 120,328.70-166,001.46-72,555.51

Finding the Fourth Proportional to 120,328.70, 166,001.46 and 72,555.51

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Solution

The fourth proportional to 120,328.70, 166,001.46 and 72,555.51 is: 100,095.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,328.70 : 166,001.46 = 72,555.51 : x
  2. Step 2: Convert to fraction form
    120,328.70/166,001.46 = 72,555.51/x
  3. Step 3: Cross multiply
    120,328.70x = 166,001.46 × 72,555.51
  4. Step 4: Simplify right side
    120,328.70x = 12,044,320,591.04
  5. Step 5: Solve for x
    x = 12,044,320,591.04/120,328.70
  6. Step 6: Final answer
    x = 100,095.16

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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.