Home / 115,407.12-173,130.12-53,076

Finding the Fourth Proportional to 115,407.12, 173,130.12 and 53,076

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Solution

The fourth proportional to 115,407.12, 173,130.12 and 53,076 is: 79,622.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,407.12 : 173,130.12 = 53,076 : x
  2. Step 2: Convert to fraction form
    115,407.12/173,130.12 = 53,076/x
  3. Step 3: Cross multiply
    115,407.12x = 173,130.12 × 53,076
  4. Step 4: Simplify right side
    115,407.12x = 9,189,054,249.12
  5. Step 5: Solve for x
    x = 9,189,054,249.12/115,407.12
  6. Step 6: Final answer
    x = 79,622.94

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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.