Home / 112,213.78-154,875.04-66,894.68

Finding the Fourth Proportional to 112,213.78, 154,875.04 and 66,894.68

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Solution

The fourth proportional to 112,213.78, 154,875.04 and 66,894.68 is: 92,326.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,213.78 : 154,875.04 = 66,894.68 : x
  2. Step 2: Convert to fraction form
    112,213.78/154,875.04 = 66,894.68/x
  3. Step 3: Cross multiply
    112,213.78x = 154,875.04 × 66,894.68
  4. Step 4: Simplify right side
    112,213.78x = 10,360,316,240.79
  5. Step 5: Solve for x
    x = 10,360,316,240.79/112,213.78
  6. Step 6: Final answer
    x = 92,326.60

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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.