Home / 127,116.95-190,556.04-42,818.12

Finding the Fourth Proportional to 127,116.95, 190,556.04 and 42,818.12

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Solution

The fourth proportional to 127,116.95, 190,556.04 and 42,818.12 is: 64,186.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,116.95 : 190,556.04 = 42,818.12 : x
  2. Step 2: Convert to fraction form
    127,116.95/190,556.04 = 42,818.12/x
  3. Step 3: Cross multiply
    127,116.95x = 190,556.04 × 42,818.12
  4. Step 4: Simplify right side
    127,116.95x = 8,159,251,309.82
  5. Step 5: Solve for x
    x = 8,159,251,309.82/127,116.95
  6. Step 6: Final answer
    x = 64,186.97

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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.