Home / 112,283.96-168,426.72-77,117

Finding the Fourth Proportional to 112,283.96, 168,426.72 and 77,117

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Solution

The fourth proportional to 112,283.96, 168,426.72 and 77,117 is: 115,676.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,283.96 : 168,426.72 = 77,117 : x
  2. Step 2: Convert to fraction form
    112,283.96/168,426.72 = 77,117/x
  3. Step 3: Cross multiply
    112,283.96x = 168,426.72 × 77,117
  4. Step 4: Simplify right side
    112,283.96x = 12,988,563,366.24
  5. Step 5: Solve for x
    x = 12,988,563,366.24/112,283.96
  6. Step 6: Final answer
    x = 115,676.04

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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.