Home / 108,148.06-162,222.09-40,692.78

Finding the Fourth Proportional to 108,148.06, 162,222.09 and 40,692.78

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Solution

The fourth proportional to 108,148.06, 162,222.09 and 40,692.78 is: 61,039.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,148.06 : 162,222.09 = 40,692.78 : x
  2. Step 2: Convert to fraction form
    108,148.06/162,222.09 = 40,692.78/x
  3. Step 3: Cross multiply
    108,148.06x = 162,222.09 × 40,692.78
  4. Step 4: Simplify right side
    108,148.06x = 6,601,267,895.81
  5. Step 5: Solve for x
    x = 6,601,267,895.81/108,148.06
  6. Step 6: Final answer
    x = 61,039.17

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1.5x scale

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.