Home / 127,739.10-176,280-74,055.24

Finding the Fourth Proportional to 127,739.10, 176,280 and 74,055.24

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Solution

The fourth proportional to 127,739.10, 176,280 and 74,055.24 is: 102,196.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,739.10 : 176,280 = 74,055.24 : x
  2. Step 2: Convert to fraction form
    127,739.10/176,280 = 74,055.24/x
  3. Step 3: Cross multiply
    127,739.10x = 176,280 × 74,055.24
  4. Step 4: Simplify right side
    127,739.10x = 13,054,457,707.20
  5. Step 5: Solve for x
    x = 13,054,457,707.20/127,739.10
  6. Step 6: Final answer
    x = 102,196.26

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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.