Home / 235,502.49-324,990.37-128,070.21

Finding the Fourth Proportional to 235,502.49, 324,990.37 and 128,070.21

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Solution

The fourth proportional to 235,502.49, 324,990.37 and 128,070.21 is: 176,735.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,502.49 : 324,990.37 = 128,070.21 : x
  2. Step 2: Convert to fraction form
    235,502.49/324,990.37 = 128,070.21/x
  3. Step 3: Cross multiply
    235,502.49x = 324,990.37 × 128,070.21
  4. Step 4: Simplify right side
    235,502.49x = 41,621,586,312.68
  5. Step 5: Solve for x
    x = 41,621,586,312.68/235,502.49
  6. Step 6: Final answer
    x = 176,735.23

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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.