Home / 112,219.64-154,851.90-66,272.12

Finding the Fourth Proportional to 112,219.64, 154,851.90 and 66,272.12

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Solution

The fourth proportional to 112,219.64, 154,851.90 and 66,272.12 is: 91,448.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,219.64 : 154,851.90 = 66,272.12 : x
  2. Step 2: Convert to fraction form
    112,219.64/154,851.90 = 66,272.12/x
  3. Step 3: Cross multiply
    112,219.64x = 154,851.90 × 66,272.12
  4. Step 4: Simplify right side
    112,219.64x = 10,262,363,699.03
  5. Step 5: Solve for x
    x = 10,262,363,699.03/112,219.64
  6. Step 6: Final answer
    x = 91,448.91

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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.