Home / 112,070.40-168,105.60-103,516.80

Finding the Fourth Proportional to 112,070.40, 168,105.60 and 103,516.80

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Solution

The fourth proportional to 112,070.40, 168,105.60 and 103,516.80 is: 155,275.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,070.40 : 168,105.60 = 103,516.80 : x
  2. Step 2: Convert to fraction form
    112,070.40/168,105.60 = 103,516.80/x
  3. Step 3: Cross multiply
    112,070.40x = 168,105.60 × 103,516.80
  4. Step 4: Simplify right side
    112,070.40x = 17,401,753,774.08
  5. Step 5: Solve for x
    x = 17,401,753,774.08/112,070.40
  6. Step 6: Final answer
    x = 155,275.20

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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.