Home / 139,303.40-192,326.60-103,451.18

Finding the Fourth Proportional to 139,303.40, 192,326.60 and 103,451.18

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Solution

The fourth proportional to 139,303.40, 192,326.60 and 103,451.18 is: 142,827.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,303.40 : 192,326.60 = 103,451.18 : x
  2. Step 2: Convert to fraction form
    139,303.40/192,326.60 = 103,451.18/x
  3. Step 3: Cross multiply
    139,303.40x = 192,326.60 × 103,451.18
  4. Step 4: Simplify right side
    139,303.40x = 19,896,413,012.38
  5. Step 5: Solve for x
    x = 19,896,413,012.38/139,303.40
  6. Step 6: Final answer
    x = 142,827.91

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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.