Home / 203,436.90-280,685.95-118,537.56

Finding the Fourth Proportional to 203,436.90, 280,685.95 and 118,537.56

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Solution

The fourth proportional to 203,436.90, 280,685.95 and 118,537.56 is: 163,548.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,436.90 : 280,685.95 = 118,537.56 : x
  2. Step 2: Convert to fraction form
    203,436.90/280,685.95 = 118,537.56/x
  3. Step 3: Cross multiply
    203,436.90x = 280,685.95 × 118,537.56
  4. Step 4: Simplify right side
    203,436.90x = 33,271,827,342.94
  5. Step 5: Solve for x
    x = 33,271,827,342.94/203,436.90
  6. Step 6: Final answer
    x = 163,548.64

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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.