Home / 135,256.21-186,637.02-74,818.60

Finding the Fourth Proportional to 135,256.21, 186,637.02 and 74,818.60

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Solution

The fourth proportional to 135,256.21, 186,637.02 and 74,818.60 is: 103,240.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,256.21 : 186,637.02 = 74,818.60 : x
  2. Step 2: Convert to fraction form
    135,256.21/186,637.02 = 74,818.60/x
  3. Step 3: Cross multiply
    135,256.21x = 186,637.02 × 74,818.60
  4. Step 4: Simplify right side
    135,256.21x = 13,963,919,611.39
  5. Step 5: Solve for x
    x = 13,963,919,611.39/135,256.21
  6. Step 6: Final answer
    x = 103,240.51

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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.