Home / 112,311.10-168,466.65-103,125.70

Finding the Fourth Proportional to 112,311.10, 168,466.65 and 103,125.70

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Solution

The fourth proportional to 112,311.10, 168,466.65 and 103,125.70 is: 154,688.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,311.10 : 168,466.65 = 103,125.70 : x
  2. Step 2: Convert to fraction form
    112,311.10/168,466.65 = 103,125.70/x
  3. Step 3: Cross multiply
    112,311.10x = 168,466.65 × 103,125.70
  4. Step 4: Simplify right side
    112,311.10x = 17,373,241,207.91
  5. Step 5: Solve for x
    x = 17,373,241,207.91/112,311.10
  6. Step 6: Final answer
    x = 154,688.55

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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.