Home / 130,692.06-180,327.50-85,436.64

Finding the Fourth Proportional to 130,692.06, 180,327.50 and 85,436.64

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Solution

The fourth proportional to 130,692.06, 180,327.50 and 85,436.64 is: 117,884.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,692.06 : 180,327.50 = 85,436.64 : x
  2. Step 2: Convert to fraction form
    130,692.06/180,327.50 = 85,436.64/x
  3. Step 3: Cross multiply
    130,692.06x = 180,327.50 × 85,436.64
  4. Step 4: Simplify right side
    130,692.06x = 15,406,575,699.60
  5. Step 5: Solve for x
    x = 15,406,575,699.60/130,692.06
  6. Step 6: Final answer
    x = 117,884.56

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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.