Home / 141,762.08-212,457.52-71,603.36

Finding the Fourth Proportional to 141,762.08, 212,457.52 and 71,603.36

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Solution

The fourth proportional to 141,762.08, 212,457.52 and 71,603.36 is: 107,311.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,762.08 : 212,457.52 = 71,603.36 : x
  2. Step 2: Convert to fraction form
    141,762.08/212,457.52 = 71,603.36/x
  3. Step 3: Cross multiply
    141,762.08x = 212,457.52 × 71,603.36
  4. Step 4: Simplify right side
    141,762.08x = 15,212,672,289.27
  5. Step 5: Solve for x
    x = 15,212,672,289.27/141,762.08
  6. Step 6: Final answer
    x = 107,311.29

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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.