Home / 137,800.64-190,117.33-77,362.90

Finding the Fourth Proportional to 137,800.64, 190,117.33 and 77,362.90

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Solution

The fourth proportional to 137,800.64, 190,117.33 and 77,362.90 is: 106,734.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,800.64 : 190,117.33 = 77,362.90 : x
  2. Step 2: Convert to fraction form
    137,800.64/190,117.33 = 77,362.90/x
  3. Step 3: Cross multiply
    137,800.64x = 190,117.33 × 77,362.90
  4. Step 4: Simplify right side
    137,800.64x = 14,708,027,320.36
  5. Step 5: Solve for x
    x = 14,708,027,320.36/137,800.64
  6. Step 6: Final answer
    x = 106,734.10

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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.