Home / 100,042.26-149,897.25-70,398.06

Finding the Fourth Proportional to 100,042.26, 149,897.25 and 70,398.06

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Solution

The fourth proportional to 100,042.26, 149,897.25 and 70,398.06 is: 105,480.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,042.26 : 149,897.25 = 70,398.06 : x
  2. Step 2: Convert to fraction form
    100,042.26/149,897.25 = 70,398.06/x
  3. Step 3: Cross multiply
    100,042.26x = 149,897.25 × 70,398.06
  4. Step 4: Simplify right side
    100,042.26x = 10,552,475,599.34
  5. Step 5: Solve for x
    x = 10,552,475,599.34/100,042.26
  6. Step 6: Final answer
    x = 105,480.18

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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.