Home / 111,471,213.70-167,206,820.55-85,962,045.70

Finding the Fourth Proportional to 111,471,213.70, 167,206,820.55 and 85,962,045.70

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Solution

The fourth proportional to 111,471,213.70, 167,206,820.55 and 85,962,045.70 is: 128,943,068.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,471,213.70 : 167,206,820.55 = 85,962,045.70 : x
  2. Step 2: Convert to fraction form
    111,471,213.70/167,206,820.55 = 85,962,045.70/x
  3. Step 3: Cross multiply
    111,471,213.70x = 167,206,820.55 × 85,962,045.70
  4. Step 4: Simplify right side
    111,471,213.70x = 14,373,440,349,470,800
  5. Step 5: Solve for x
    x = 14,373,440,349,470,800/111,471,213.70
  6. Step 6: Final answer
    x = 128,943,068.55

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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.