Home / 135,389.35-186,868.67-90,069.24

Finding the Fourth Proportional to 135,389.35, 186,868.67 and 90,069.24

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Solution

The fourth proportional to 135,389.35, 186,868.67 and 90,069.24 is: 124,316.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,389.35 : 186,868.67 = 90,069.24 : x
  2. Step 2: Convert to fraction form
    135,389.35/186,868.67 = 90,069.24/x
  3. Step 3: Cross multiply
    135,389.35x = 186,868.67 × 90,069.24
  4. Step 4: Simplify right side
    135,389.35x = 16,831,119,318.19
  5. Step 5: Solve for x
    x = 16,831,119,318.19/135,389.35
  6. Step 6: Final answer
    x = 124,316.42

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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.