Home / 127,500.12-191,075.21-80,669.16

Finding the Fourth Proportional to 127,500.12, 191,075.21 and 80,669.16

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Solution

The fourth proportional to 127,500.12, 191,075.21 and 80,669.16 is: 120,893.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,500.12 : 191,075.21 = 80,669.16 : x
  2. Step 2: Convert to fraction form
    127,500.12/191,075.21 = 80,669.16/x
  3. Step 3: Cross multiply
    127,500.12x = 191,075.21 × 80,669.16
  4. Step 4: Simplify right side
    127,500.12x = 15,413,875,732.15
  5. Step 5: Solve for x
    x = 15,413,875,732.15/127,500.12
  6. Step 6: Final answer
    x = 120,893.03

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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.