Home / 128,226.18-176,951.79-73,784.46

Finding the Fourth Proportional to 128,226.18, 176,951.79 and 73,784.46

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Solution

The fourth proportional to 128,226.18, 176,951.79 and 73,784.46 is: 101,822.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,226.18 : 176,951.79 = 73,784.46 : x
  2. Step 2: Convert to fraction form
    128,226.18/176,951.79 = 73,784.46/x
  3. Step 3: Cross multiply
    128,226.18x = 176,951.79 × 73,784.46
  4. Step 4: Simplify right side
    128,226.18x = 13,056,292,271.18
  5. Step 5: Solve for x
    x = 13,056,292,271.18/128,226.18
  6. Step 6: Final answer
    x = 101,822.36

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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.