Home / 145,603.04-200,898.96-81,917.60

Finding the Fourth Proportional to 145,603.04, 200,898.96 and 81,917.60

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Solution

The fourth proportional to 145,603.04, 200,898.96 and 81,917.60 is: 113,027.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,603.04 : 200,898.96 = 81,917.60 : x
  2. Step 2: Convert to fraction form
    145,603.04/200,898.96 = 81,917.60/x
  3. Step 3: Cross multiply
    145,603.04x = 200,898.96 × 81,917.60
  4. Step 4: Simplify right side
    145,603.04x = 16,457,160,840.75
  5. Step 5: Solve for x
    x = 16,457,160,840.75/145,603.04
  6. Step 6: Final answer
    x = 113,027.59

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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.