Home / 137,783.41-190,130.58-77,342.37

Finding the Fourth Proportional to 137,783.41, 190,130.58 and 77,342.37

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Solution

The fourth proportional to 137,783.41, 190,130.58 and 77,342.37 is: 106,726.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,783.41 : 190,130.58 = 77,342.37 : x
  2. Step 2: Convert to fraction form
    137,783.41/190,130.58 = 77,342.37/x
  3. Step 3: Cross multiply
    137,783.41x = 190,130.58 × 77,342.37
  4. Step 4: Simplify right side
    137,783.41x = 14,705,149,666.67
  5. Step 5: Solve for x
    x = 14,705,149,666.67/137,783.41
  6. Step 6: Final answer
    x = 106,726.56

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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.