Home / 145,498.64-200,771.87-81,835.07

Finding the Fourth Proportional to 145,498.64, 200,771.87 and 81,835.07

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Solution

The fourth proportional to 145,498.64, 200,771.87 and 81,835.07 is: 112,923.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,498.64 : 200,771.87 = 81,835.07 : x
  2. Step 2: Convert to fraction form
    145,498.64/200,771.87 = 81,835.07/x
  3. Step 3: Cross multiply
    145,498.64x = 200,771.87 × 81,835.07
  4. Step 4: Simplify right side
    145,498.64x = 16,430,178,622.45
  5. Step 5: Solve for x
    x = 16,430,178,622.45/145,498.64
  6. Step 6: Final answer
    x = 112,923.25

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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.