Home / 135,165.02-186,541.34-74,740.23

Finding the Fourth Proportional to 135,165.02, 186,541.34 and 74,740.23

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Solution

The fourth proportional to 135,165.02, 186,541.34 and 74,740.23 is: 103,149.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,165.02 : 186,541.34 = 74,740.23 : x
  2. Step 2: Convert to fraction form
    135,165.02/186,541.34 = 74,740.23/x
  3. Step 3: Cross multiply
    135,165.02x = 186,541.34 × 74,740.23
  4. Step 4: Simplify right side
    135,165.02x = 13,942,142,282.41
  5. Step 5: Solve for x
    x = 13,942,142,282.41/135,165.02
  6. Step 6: Final answer
    x = 103,149.05

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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.