Home / 112,130.28-154,744.74-64,385.64

Finding the Fourth Proportional to 112,130.28, 154,744.74 and 64,385.64

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Solution

The fourth proportional to 112,130.28, 154,744.74 and 64,385.64 is: 88,855.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,130.28 : 154,744.74 = 64,385.64 : x
  2. Step 2: Convert to fraction form
    112,130.28/154,744.74 = 64,385.64/x
  3. Step 3: Cross multiply
    112,130.28x = 154,744.74 × 64,385.64
  4. Step 4: Simplify right side
    112,130.28x = 9,963,339,121.53
  5. Step 5: Solve for x
    x = 9,963,339,121.53/112,130.28
  6. Step 6: Final answer
    x = 88,855.03

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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.