Home / 112,130.94-168,196.40-76,963.98

Finding the Fourth Proportional to 112,130.94, 168,196.40 and 76,963.98

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Solution

The fourth proportional to 112,130.94, 168,196.40 and 76,963.98 is: 115,445.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,130.94 : 168,196.40 = 76,963.98 : x
  2. Step 2: Convert to fraction form
    112,130.94/168,196.40 = 76,963.98/x
  3. Step 3: Cross multiply
    112,130.94x = 168,196.40 × 76,963.98
  4. Step 4: Simplify right side
    112,130.94x = 12,945,063,717.10
  5. Step 5: Solve for x
    x = 12,945,063,717.10/112,130.94
  6. Step 6: Final answer
    x = 115,445.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.