Home / 141,987.12-213,017.73-53,242.30

Finding the Fourth Proportional to 141,987.12, 213,017.73 and 53,242.30

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Solution

The fourth proportional to 141,987.12, 213,017.73 and 53,242.30 is: 79,877.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,987.12 : 213,017.73 = 53,242.30 : x
  2. Step 2: Convert to fraction form
    141,987.12/213,017.73 = 53,242.30/x
  3. Step 3: Cross multiply
    141,987.12x = 213,017.73 × 53,242.30
  4. Step 4: Simplify right side
    141,987.12x = 11,341,553,885.98
  5. Step 5: Solve for x
    x = 11,341,553,885.98/141,987.12
  6. Step 6: Final answer
    x = 79,877.34

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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.