Home / 141,849.21-212,838.48-53,109.66

Finding the Fourth Proportional to 141,849.21, 212,838.48 and 53,109.66

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Solution

The fourth proportional to 141,849.21, 212,838.48 and 53,109.66 is: 79,688.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,849.21 : 212,838.48 = 53,109.66 : x
  2. Step 2: Convert to fraction form
    141,849.21/212,838.48 = 53,109.66/x
  3. Step 3: Cross multiply
    141,849.21x = 212,838.48 × 53,109.66
  4. Step 4: Simplify right side
    141,849.21x = 11,303,779,307.72
  5. Step 5: Solve for x
    x = 11,303,779,307.72/141,849.21
  6. Step 6: Final answer
    x = 79,688.70

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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.