Home / 135,915.90-187,557.58-75,490.23

Finding the Fourth Proportional to 135,915.90, 187,557.58 and 75,490.23

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Solution

The fourth proportional to 135,915.90, 187,557.58 and 75,490.23 is: 104,172.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,915.90 : 187,557.58 = 75,490.23 : x
  2. Step 2: Convert to fraction form
    135,915.90/187,557.58 = 75,490.23/x
  3. Step 3: Cross multiply
    135,915.90x = 187,557.58 × 75,490.23
  4. Step 4: Simplify right side
    135,915.90x = 14,158,764,170.50
  5. Step 5: Solve for x
    x = 14,158,764,170.50/135,915.90
  6. Step 6: Final answer
    x = 104,172.98

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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.