Home / 127,729.16-191,613.18-77,846.12

Finding the Fourth Proportional to 127,729.16, 191,613.18 and 77,846.12

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Solution

The fourth proportional to 127,729.16, 191,613.18 and 77,846.12 is: 116,781.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,729.16 : 191,613.18 = 77,846.12 : x
  2. Step 2: Convert to fraction form
    127,729.16/191,613.18 = 77,846.12/x
  3. Step 3: Cross multiply
    127,729.16x = 191,613.18 × 77,846.12
  4. Step 4: Simplify right side
    127,729.16x = 14,916,342,603.86
  5. Step 5: Solve for x
    x = 14,916,342,603.86/127,729.16
  6. Step 6: Final answer
    x = 116,781.03

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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.