Home / 145,539.63-200,844.39-81,877.50

Finding the Fourth Proportional to 145,539.63, 200,844.39 and 81,877.50

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Solution

The fourth proportional to 145,539.63, 200,844.39 and 81,877.50 is: 112,990.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,539.63 : 200,844.39 = 81,877.50 : x
  2. Step 2: Convert to fraction form
    145,539.63/200,844.39 = 81,877.50/x
  3. Step 3: Cross multiply
    145,539.63x = 200,844.39 × 81,877.50
  4. Step 4: Simplify right side
    145,539.63x = 16,444,636,542.23
  5. Step 5: Solve for x
    x = 16,444,636,542.23/145,539.63
  6. Step 6: Final answer
    x = 112,990.78

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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.