Home / 134,880.20-202,320.30-90,528.20

Finding the Fourth Proportional to 134,880.20, 202,320.30 and 90,528.20

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Solution

The fourth proportional to 134,880.20, 202,320.30 and 90,528.20 is: 135,792.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,880.20 : 202,320.30 = 90,528.20 : x
  2. Step 2: Convert to fraction form
    134,880.20/202,320.30 = 90,528.20/x
  3. Step 3: Cross multiply
    134,880.20x = 202,320.30 × 90,528.20
  4. Step 4: Simplify right side
    134,880.20x = 18,315,692,582.46
  5. Step 5: Solve for x
    x = 18,315,692,582.46/134,880.20
  6. Step 6: Final answer
    x = 135,792.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.