Home / 100,070.12-150,104.81-40,125.39

Finding the Fourth Proportional to 100,070.12, 150,104.81 and 40,125.39

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Solution

The fourth proportional to 100,070.12, 150,104.81 and 40,125.39 is: 60,187.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,070.12 : 150,104.81 = 40,125.39 : x
  2. Step 2: Convert to fraction form
    100,070.12/150,104.81 = 40,125.39/x
  3. Step 3: Cross multiply
    100,070.12x = 150,104.81 × 40,125.39
  4. Step 4: Simplify right side
    100,070.12x = 6,023,013,841.50
  5. Step 5: Solve for x
    x = 6,023,013,841.50/100,070.12
  6. Step 6: Final answer
    x = 60,187.94

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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.