Home / 133,739.40-184,685.22-86,075.76

Finding the Fourth Proportional to 133,739.40, 184,685.22 and 86,075.76

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Solution

The fourth proportional to 133,739.40, 184,685.22 and 86,075.76 is: 118,864.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,739.40 : 184,685.22 = 86,075.76 : x
  2. Step 2: Convert to fraction form
    133,739.40/184,685.22 = 86,075.76/x
  3. Step 3: Cross multiply
    133,739.40x = 184,685.22 × 86,075.76
  4. Step 4: Simplify right side
    133,739.40x = 15,896,920,672.27
  5. Step 5: Solve for x
    x = 15,896,920,672.27/133,739.40
  6. Step 6: Final answer
    x = 118,864.90

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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.