Home / 103,133.32-142,329.70-57,825.88

Finding the Fourth Proportional to 103,133.32, 142,329.70 and 57,825.88

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Solution

The fourth proportional to 103,133.32, 142,329.70 and 57,825.88 is: 79,802.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,133.32 : 142,329.70 = 57,825.88 : x
  2. Step 2: Convert to fraction form
    103,133.32/142,329.70 = 57,825.88/x
  3. Step 3: Cross multiply
    103,133.32x = 142,329.70 × 57,825.88
  4. Step 4: Simplify right side
    103,133.32x = 8,230,340,152.64
  5. Step 5: Solve for x
    x = 8,230,340,152.64/103,133.32
  6. Step 6: Final answer
    x = 79,802.92

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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.