Home / 112,364.32-154,915.12-86,551.92

Finding the Fourth Proportional to 112,364.32, 154,915.12 and 86,551.92

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Solution

The fourth proportional to 112,364.32, 154,915.12 and 86,551.92 is: 119,327.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,364.32 : 154,915.12 = 86,551.92 : x
  2. Step 2: Convert to fraction form
    112,364.32/154,915.12 = 86,551.92/x
  3. Step 3: Cross multiply
    112,364.32x = 154,915.12 × 86,551.92
  4. Step 4: Simplify right side
    112,364.32x = 13,408,201,073.03
  5. Step 5: Solve for x
    x = 13,408,201,073.03/112,364.32
  6. Step 6: Final answer
    x = 119,327.92

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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.