Home / 127,739.32-176,280.31-74,055.45

Finding the Fourth Proportional to 127,739.32, 176,280.31 and 74,055.45

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Solution

The fourth proportional to 127,739.32, 176,280.31 and 74,055.45 is: 102,196.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,739.32 : 176,280.31 = 74,055.45 : x
  2. Step 2: Convert to fraction form
    127,739.32/176,280.31 = 74,055.45/x
  3. Step 3: Cross multiply
    127,739.32x = 176,280.31 × 74,055.45
  4. Step 4: Simplify right side
    127,739.32x = 13,054,517,683.19
  5. Step 5: Solve for x
    x = 13,054,517,683.19/127,739.32
  6. Step 6: Final answer
    x = 102,196.55

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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.