Home / 136,887.98-188,903.39-76,459.50

Finding the Fourth Proportional to 136,887.98, 188,903.39 and 76,459.50

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Solution

The fourth proportional to 136,887.98, 188,903.39 and 76,459.50 is: 105,512.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,887.98 : 188,903.39 = 76,459.50 : x
  2. Step 2: Convert to fraction form
    136,887.98/188,903.39 = 76,459.50/x
  3. Step 3: Cross multiply
    136,887.98x = 188,903.39 × 76,459.50
  4. Step 4: Simplify right side
    136,887.98x = 14,443,458,365.41
  5. Step 5: Solve for x
    x = 14,443,458,365.41/136,887.98
  6. Step 6: Final answer
    x = 105,512.98

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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.