Home / 105,099,079.68-145,035,360-58,690,149.12

Finding the Fourth Proportional to 105,099,079.68, 145,035,360 and 58,690,149.12

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Solution

The fourth proportional to 105,099,079.68, 145,035,360 and 58,690,149.12 is: 80,991,640.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,099,079.68 : 145,035,360 = 58,690,149.12 : x
  2. Step 2: Convert to fraction form
    105,099,079.68/145,035,360 = 58,690,149.12/x
  3. Step 3: Cross multiply
    105,099,079.68x = 145,035,360 × 58,690,149.12
  4. Step 4: Simplify right side
    105,099,079.68x = 8,512,146,906,072,883
  5. Step 5: Solve for x
    x = 8,512,146,906,072,883/105,099,079.68
  6. Step 6: Final answer
    x = 80,991,640.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.