Home / 135,330.34-186,756.26-74,905.18

Finding the Fourth Proportional to 135,330.34, 186,756.26 and 74,905.18

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Solution

The fourth proportional to 135,330.34, 186,756.26 and 74,905.18 is: 103,369.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,330.34 : 186,756.26 = 74,905.18 : x
  2. Step 2: Convert to fraction form
    135,330.34/186,756.26 = 74,905.18/x
  3. Step 3: Cross multiply
    135,330.34x = 186,756.26 × 74,905.18
  4. Step 4: Simplify right side
    135,330.34x = 13,989,011,271.43
  5. Step 5: Solve for x
    x = 13,989,011,271.43/135,330.34
  6. Step 6: Final answer
    x = 103,369.36

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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.