Home / 210,235.22-290,033.58-128,567.04

Finding the Fourth Proportional to 210,235.22, 290,033.58 and 128,567.04

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Solution

The fourth proportional to 210,235.22, 290,033.58 and 128,567.04 is: 177,366.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,235.22 : 290,033.58 = 128,567.04 : x
  2. Step 2: Convert to fraction form
    210,235.22/290,033.58 = 128,567.04/x
  3. Step 3: Cross multiply
    210,235.22x = 290,033.58 × 128,567.04
  4. Step 4: Simplify right side
    210,235.22x = 37,288,758,881.20
  5. Step 5: Solve for x
    x = 37,288,758,881.20/210,235.22
  6. Step 6: Final answer
    x = 177,366.85

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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.