Home / 147,703.26-203,317.38-128,807.58

Finding the Fourth Proportional to 147,703.26, 203,317.38 and 128,807.58

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Solution

The fourth proportional to 147,703.26, 203,317.38 and 128,807.58 is: 177,306.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,703.26 : 203,317.38 = 128,807.58 : x
  2. Step 2: Convert to fraction form
    147,703.26/203,317.38 = 128,807.58/x
  3. Step 3: Cross multiply
    147,703.26x = 203,317.38 × 128,807.58
  4. Step 4: Simplify right side
    147,703.26x = 26,188,819,689.74
  5. Step 5: Solve for x
    x = 26,188,819,689.74/147,703.26
  6. Step 6: Final answer
    x = 177,306.98

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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.