Home / 112,274.64-154,935.15-66,929.28

Finding the Fourth Proportional to 112,274.64, 154,935.15 and 66,929.28

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Solution

The fourth proportional to 112,274.64, 154,935.15 and 66,929.28 is: 92,360.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,274.64 : 154,935.15 = 66,929.28 : x
  2. Step 2: Convert to fraction form
    112,274.64/154,935.15 = 66,929.28/x
  3. Step 3: Cross multiply
    112,274.64x = 154,935.15 × 66,929.28
  4. Step 4: Simplify right side
    112,274.64x = 10,369,698,036.19
  5. Step 5: Solve for x
    x = 10,369,698,036.19/112,274.64
  6. Step 6: Final answer
    x = 92,360.11

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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.