Home / 145,478.03-200,787.23-91,055.43

Finding the Fourth Proportional to 145,478.03, 200,787.23 and 91,055.43

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Solution

The fourth proportional to 145,478.03, 200,787.23 and 91,055.43 is: 125,673.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,478.03 : 200,787.23 = 91,055.43 : x
  2. Step 2: Convert to fraction form
    145,478.03/200,787.23 = 91,055.43/x
  3. Step 3: Cross multiply
    145,478.03x = 200,787.23 × 91,055.43
  4. Step 4: Simplify right side
    145,478.03x = 18,282,767,793.80
  5. Step 5: Solve for x
    x = 18,282,767,793.80/145,478.03
  6. Step 6: Final answer
    x = 125,673.74

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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.