Home / 157,757,165.73-217,716,154.29-87,191,257.86

Finding the Fourth Proportional to 157,757,165.73, 217,716,154.29 and 87,191,257.86

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Solution

The fourth proportional to 157,757,165.73, 217,716,154.29 and 87,191,257.86 is: 120,330,162.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,757,165.73 : 217,716,154.29 = 87,191,257.86 : x
  2. Step 2: Convert to fraction form
    157,757,165.73/217,716,154.29 = 87,191,257.86/x
  3. Step 3: Cross multiply
    157,757,165.73x = 217,716,154.29 × 87,191,257.86
  4. Step 4: Simplify right side
    157,757,165.73x = 18,982,945,348,986,936
  5. Step 5: Solve for x
    x = 18,982,945,348,986,936/157,757,165.73
  6. Step 6: Final answer
    x = 120,330,162.25

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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.