Home / 100,341.20-150,511.80-38,011.70

Finding the Fourth Proportional to 100,341.20, 150,511.80 and 38,011.70

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Solution

The fourth proportional to 100,341.20, 150,511.80 and 38,011.70 is: 57,017.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,341.20 : 150,511.80 = 38,011.70 : x
  2. Step 2: Convert to fraction form
    100,341.20/150,511.80 = 38,011.70/x
  3. Step 3: Cross multiply
    100,341.20x = 150,511.80 × 38,011.70
  4. Step 4: Simplify right side
    100,341.20x = 5,721,208,635.50
  5. Step 5: Solve for x
    x = 5,721,208,635.50/100,341.20
  6. Step 6: Final answer
    x = 57,017.55

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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.