Home / 236,117.64-325,837.89-128,688.42

Finding the Fourth Proportional to 236,117.64, 325,837.89 and 128,688.42

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Solution

The fourth proportional to 236,117.64, 325,837.89 and 128,688.42 is: 177,587.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,117.64 : 325,837.89 = 128,688.42 : x
  2. Step 2: Convert to fraction form
    236,117.64/325,837.89 = 128,688.42/x
  3. Step 3: Cross multiply
    236,117.64x = 325,837.89 × 128,688.42
  4. Step 4: Simplify right side
    236,117.64x = 41,931,563,240.23
  5. Step 5: Solve for x
    x = 41,931,563,240.23/236,117.64
  6. Step 6: Final answer
    x = 177,587.59

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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.