Home / 127,012.18-190,518.32-38,265.70

Finding the Fourth Proportional to 127,012.18, 190,518.32 and 38,265.70

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Solution

The fourth proportional to 127,012.18, 190,518.32 and 38,265.70 is: 57,398.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,012.18 : 190,518.32 = 38,265.70 : x
  2. Step 2: Convert to fraction form
    127,012.18/190,518.32 = 38,265.70/x
  3. Step 3: Cross multiply
    127,012.18x = 190,518.32 × 38,265.70
  4. Step 4: Simplify right side
    127,012.18x = 7,290,316,877.62
  5. Step 5: Solve for x
    x = 7,290,316,877.62/127,012.18
  6. Step 6: Final answer
    x = 57,398.57

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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.