Home / 136,429.02-186,908.63-131,315.50

Finding the Fourth Proportional to 136,429.02, 186,908.63 and 131,315.50

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Solution

The fourth proportional to 136,429.02, 186,908.63 and 131,315.50 is: 179,903.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,429.02 : 186,908.63 = 131,315.50 : x
  2. Step 2: Convert to fraction form
    136,429.02/186,908.63 = 131,315.50/x
  3. Step 3: Cross multiply
    136,429.02x = 186,908.63 × 131,315.50
  4. Step 4: Simplify right side
    136,429.02x = 24,544,000,202.77
  5. Step 5: Solve for x
    x = 24,544,000,202.77/136,429.02
  6. Step 6: Final answer
    x = 179,903.07

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.