Home / 112,052.61-154,695.89-74,378.37

Finding the Fourth Proportional to 112,052.61, 154,695.89 and 74,378.37

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Solution

The fourth proportional to 112,052.61, 154,695.89 and 74,378.37 is: 102,684.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,052.61 : 154,695.89 = 74,378.37 : x
  2. Step 2: Convert to fraction form
    112,052.61/154,695.89 = 74,378.37/x
  3. Step 3: Cross multiply
    112,052.61x = 154,695.89 × 74,378.37
  4. Step 4: Simplify right side
    112,052.61x = 11,506,028,143.90
  5. Step 5: Solve for x
    x = 11,506,028,143.90/112,052.61
  6. Step 6: Final answer
    x = 102,684.16

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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.