Home / 142,051.58-213,021.98-53,256.62

Finding the Fourth Proportional to 142,051.58, 213,021.98 and 53,256.62

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Solution

The fourth proportional to 142,051.58, 213,021.98 and 53,256.62 is: 79,864.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,051.58 : 213,021.98 = 53,256.62 : x
  2. Step 2: Convert to fraction form
    142,051.58/213,021.98 = 53,256.62/x
  3. Step 3: Cross multiply
    142,051.58x = 213,021.98 × 53,256.62
  4. Step 4: Simplify right side
    142,051.58x = 11,344,830,640.51
  5. Step 5: Solve for x
    x = 11,344,830,640.51/142,051.58
  6. Step 6: Final answer
    x = 79,864.16

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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.