Home / 136,905.60-205,204.80-58,006.40

Finding the Fourth Proportional to 136,905.60, 205,204.80 and 58,006.40

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Solution

The fourth proportional to 136,905.60, 205,204.80 and 58,006.40 is: 86,944.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,905.60 : 205,204.80 = 58,006.40 : x
  2. Step 2: Convert to fraction form
    136,905.60/205,204.80 = 58,006.40/x
  3. Step 3: Cross multiply
    136,905.60x = 205,204.80 × 58,006.40
  4. Step 4: Simplify right side
    136,905.60x = 11,903,191,710.72
  5. Step 5: Solve for x
    x = 11,903,191,710.72/136,905.60
  6. Step 6: Final answer
    x = 86,944.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.