Home / 136,075.20-187,783.20-76,459.20

Finding the Fourth Proportional to 136,075.20, 187,783.20 and 76,459.20

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Solution

The fourth proportional to 136,075.20, 187,783.20 and 76,459.20 is: 105,513.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,075.20 : 187,783.20 = 76,459.20 : x
  2. Step 2: Convert to fraction form
    136,075.20/187,783.20 = 76,459.20/x
  3. Step 3: Cross multiply
    136,075.20x = 187,783.20 × 76,459.20
  4. Step 4: Simplify right side
    136,075.20x = 14,357,753,245.44
  5. Step 5: Solve for x
    x = 14,357,753,245.44/136,075.20
  6. Step 6: Final answer
    x = 105,513.37

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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.