Home / 235,774.32-325,368.36-128,344.20

Finding the Fourth Proportional to 235,774.32, 325,368.36 and 128,344.20

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Solution

The fourth proportional to 235,774.32, 325,368.36 and 128,344.20 is: 177,114.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,774.32 : 325,368.36 = 128,344.20 : x
  2. Step 2: Convert to fraction form
    235,774.32/325,368.36 = 128,344.20/x
  3. Step 3: Cross multiply
    235,774.32x = 325,368.36 × 128,344.20
  4. Step 4: Simplify right side
    235,774.32x = 41,759,141,869.51
  5. Step 5: Solve for x
    x = 41,759,141,869.51/235,774.32
  6. Step 6: Final answer
    x = 177,114.89

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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.