Home / 127,739.52-176,280.60-74,055.72

Finding the Fourth Proportional to 127,739.52, 176,280.60 and 74,055.72

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Solution

The fourth proportional to 127,739.52, 176,280.60 and 74,055.72 is: 102,196.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,739.52 : 176,280.60 = 74,055.72 : x
  2. Step 2: Convert to fraction form
    127,739.52/176,280.60 = 74,055.72/x
  3. Step 3: Cross multiply
    127,739.52x = 176,280.60 × 74,055.72
  4. Step 4: Simplify right side
    127,739.52x = 13,054,586,755.03
  5. Step 5: Solve for x
    x = 13,054,586,755.03/127,739.52
  6. Step 6: Final answer
    x = 102,196.93

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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.