Home / 142,645.85-213,968.57-42,805.88

Finding the Fourth Proportional to 142,645.85, 213,968.57 and 42,805.88

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Solution

The fourth proportional to 142,645.85, 213,968.57 and 42,805.88 is: 64,208.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,645.85 : 213,968.57 = 42,805.88 : x
  2. Step 2: Convert to fraction form
    142,645.85/213,968.57 = 42,805.88/x
  3. Step 3: Cross multiply
    142,645.85x = 213,968.57 × 42,805.88
  4. Step 4: Simplify right side
    142,645.85x = 9,159,112,931.19
  5. Step 5: Solve for x
    x = 9,159,112,931.19/142,645.85
  6. Step 6: Final answer
    x = 64,208.76

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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.