Home / 111,990.08-154,535.10-68,962.68

Finding the Fourth Proportional to 111,990.08, 154,535.10 and 68,962.68

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Solution

The fourth proportional to 111,990.08, 154,535.10 and 68,962.68 is: 95,161.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,990.08 : 154,535.10 = 68,962.68 : x
  2. Step 2: Convert to fraction form
    111,990.08/154,535.10 = 68,962.68/x
  3. Step 3: Cross multiply
    111,990.08x = 154,535.10 × 68,962.68
  4. Step 4: Simplify right side
    111,990.08x = 10,657,154,650.07
  5. Step 5: Solve for x
    x = 10,657,154,650.07/111,990.08
  6. Step 6: Final answer
    x = 95,161.60

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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.