Home / 127,149.29-190,590.99-42,880.34

Finding the Fourth Proportional to 127,149.29, 190,590.99 and 42,880.34

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Solution

The fourth proportional to 127,149.29, 190,590.99 and 42,880.34 is: 64,275.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,149.29 : 190,590.99 = 42,880.34 : x
  2. Step 2: Convert to fraction form
    127,149.29/190,590.99 = 42,880.34/x
  3. Step 3: Cross multiply
    127,149.29x = 190,590.99 × 42,880.34
  4. Step 4: Simplify right side
    127,149.29x = 8,172,606,452.14
  5. Step 5: Solve for x
    x = 8,172,606,452.14/127,149.29
  6. Step 6: Final answer
    x = 64,275.68

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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.