Home / 158,040.56-218,030.28-103,577.84

Finding the Fourth Proportional to 158,040.56, 218,030.28 and 103,577.84

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Solution

The fourth proportional to 158,040.56, 218,030.28 and 103,577.84 is: 142,894.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,040.56 : 218,030.28 = 103,577.84 : x
  2. Step 2: Convert to fraction form
    158,040.56/218,030.28 = 103,577.84/x
  3. Step 3: Cross multiply
    158,040.56x = 218,030.28 × 103,577.84
  4. Step 4: Simplify right side
    158,040.56x = 22,583,105,457.00
  5. Step 5: Solve for x
    x = 22,583,105,457.00/158,040.56
  6. Step 6: Final answer
    x = 142,894.36

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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.