Home / 127,403.55-190,897.47-77,498.91

Finding the Fourth Proportional to 127,403.55, 190,897.47 and 77,498.91

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Solution

The fourth proportional to 127,403.55, 190,897.47 and 77,498.91 is: 116,121.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,403.55 : 190,897.47 = 77,498.91 : x
  2. Step 2: Convert to fraction form
    127,403.55/190,897.47 = 77,498.91/x
  3. Step 3: Cross multiply
    127,403.55x = 190,897.47 × 77,498.91
  4. Step 4: Simplify right side
    127,403.55x = 14,794,345,846.76
  5. Step 5: Solve for x
    x = 14,794,345,846.76/127,403.55
  6. Step 6: Final answer
    x = 116,121.93

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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.