Home / 235,731.27-325,316.06-128,308.26

Finding the Fourth Proportional to 235,731.27, 325,316.06 and 128,308.26

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Solution

The fourth proportional to 235,731.27, 325,316.06 and 128,308.26 is: 177,069.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,731.27 : 325,316.06 = 128,308.26 : x
  2. Step 2: Convert to fraction form
    235,731.27/325,316.06 = 128,308.26/x
  3. Step 3: Cross multiply
    235,731.27x = 325,316.06 × 128,308.26
  4. Step 4: Simplify right side
    235,731.27x = 41,740,736,967.11
  5. Step 5: Solve for x
    x = 41,740,736,967.11/235,731.27
  6. Step 6: Final answer
    x = 177,069.16

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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.