Home / 105,319.80-145,341.36-57,573.14

Finding the Fourth Proportional to 105,319.80, 145,341.36 and 57,573.14

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Solution

The fourth proportional to 105,319.80, 145,341.36 and 57,573.14 is: 79,450.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,319.80 : 145,341.36 = 57,573.14 : x
  2. Step 2: Convert to fraction form
    105,319.80/145,341.36 = 57,573.14/x
  3. Step 3: Cross multiply
    105,319.80x = 145,341.36 × 57,573.14
  4. Step 4: Simplify right side
    105,319.80x = 8,367,757,740.36
  5. Step 5: Solve for x
    x = 8,367,757,740.36/105,319.80
  6. Step 6: Final answer
    x = 79,450.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.