Home / 142,530.98-213,571.41-115,746.63

Finding the Fourth Proportional to 142,530.98, 213,571.41 and 115,746.63

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Solution

The fourth proportional to 142,530.98, 213,571.41 and 115,746.63 is: 173,437.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,530.98 : 213,571.41 = 115,746.63 : x
  2. Step 2: Convert to fraction form
    142,530.98/213,571.41 = 115,746.63/x
  3. Step 3: Cross multiply
    142,530.98x = 213,571.41 × 115,746.63
  4. Step 4: Simplify right side
    142,530.98x = 24,720,170,561.12
  5. Step 5: Solve for x
    x = 24,720,170,561.12/142,530.98
  6. Step 6: Final answer
    x = 173,437.17

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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.