Home / 236,159.08-325,902.96-128,729.15

Finding the Fourth Proportional to 236,159.08, 325,902.96 and 128,729.15

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Solution

The fourth proportional to 236,159.08, 325,902.96 and 128,729.15 is: 177,648.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,159.08 : 325,902.96 = 128,729.15 : x
  2. Step 2: Convert to fraction form
    236,159.08/325,902.96 = 128,729.15/x
  3. Step 3: Cross multiply
    236,159.08x = 325,902.96 × 128,729.15
  4. Step 4: Simplify right side
    236,159.08x = 41,953,210,615.91
  5. Step 5: Solve for x
    x = 41,953,210,615.91/236,159.08
  6. Step 6: Final answer
    x = 177,648.10

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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.