Home / 207,920.88-286,931.04-112,427.64

Finding the Fourth Proportional to 207,920.88, 286,931.04 and 112,427.64

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Solution

The fourth proportional to 207,920.88, 286,931.04 and 112,427.64 is: 155,150.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,920.88 : 286,931.04 = 112,427.64 : x
  2. Step 2: Convert to fraction form
    207,920.88/286,931.04 = 112,427.64/x
  3. Step 3: Cross multiply
    207,920.88x = 286,931.04 × 112,427.64
  4. Step 4: Simplify right side
    207,920.88x = 32,258,979,669.95
  5. Step 5: Solve for x
    x = 32,258,979,669.95/207,920.88
  6. Step 6: Final answer
    x = 155,150.27

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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.