Home / 102,040.38-153,063.45-28,168.38

Finding the Fourth Proportional to 102,040.38, 153,063.45 and 28,168.38

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Solution

The fourth proportional to 102,040.38, 153,063.45 and 28,168.38 is: 42,253.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,040.38 : 153,063.45 = 28,168.38 : x
  2. Step 2: Convert to fraction form
    102,040.38/153,063.45 = 28,168.38/x
  3. Step 3: Cross multiply
    102,040.38x = 153,063.45 × 28,168.38
  4. Step 4: Simplify right side
    102,040.38x = 4,311,549,423.71
  5. Step 5: Solve for x
    x = 4,311,549,423.71/102,040.38
  6. Step 6: Final answer
    x = 42,253.37

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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.