Home / 236,159.23-325,903.16-128,729.29

Finding the Fourth Proportional to 236,159.23, 325,903.16 and 128,729.29

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Solution

The fourth proportional to 236,159.23, 325,903.16 and 128,729.29 is: 177,648.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,159.23 : 325,903.16 = 128,729.29 : x
  2. Step 2: Convert to fraction form
    236,159.23/325,903.16 = 128,729.29/x
  3. Step 3: Cross multiply
    236,159.23x = 325,903.16 × 128,729.29
  4. Step 4: Simplify right side
    236,159.23x = 41,953,282,395.56
  5. Step 5: Solve for x
    x = 41,953,282,395.56/236,159.23
  6. Step 6: Final answer
    x = 177,648.29

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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.