Home / 120,692.93-180,886.18-54,130.37

Finding the Fourth Proportional to 120,692.93, 180,886.18 and 54,130.37

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Solution

The fourth proportional to 120,692.93, 180,886.18 and 54,130.37 is: 81,126.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,692.93 : 180,886.18 = 54,130.37 : x
  2. Step 2: Convert to fraction form
    120,692.93/180,886.18 = 54,130.37/x
  3. Step 3: Cross multiply
    120,692.93x = 180,886.18 × 54,130.37
  4. Step 4: Simplify right side
    120,692.93x = 9,791,435,851.29
  5. Step 5: Solve for x
    x = 9,791,435,851.29/120,692.93
  6. Step 6: Final answer
    x = 81,126.84

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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.