Home / 130,846.74-179,391.50-128,484.78

Finding the Fourth Proportional to 130,846.74, 179,391.50 and 128,484.78

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Solution

The fourth proportional to 130,846.74, 179,391.50 and 128,484.78 is: 176,153.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,846.74 : 179,391.50 = 128,484.78 : x
  2. Step 2: Convert to fraction form
    130,846.74/179,391.50 = 128,484.78/x
  3. Step 3: Cross multiply
    130,846.74x = 179,391.50 × 128,484.78
  4. Step 4: Simplify right side
    130,846.74x = 23,049,076,768.95
  5. Step 5: Solve for x
    x = 23,049,076,768.95/130,846.74
  6. Step 6: Final answer
    x = 176,153.24

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1.5x scale

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.