Home / 117,392.40-162,030.42-72,081.24

Finding the Fourth Proportional to 117,392.40, 162,030.42 and 72,081.24

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Solution

The fourth proportional to 117,392.40, 162,030.42 and 72,081.24 is: 99,489.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,392.40 : 162,030.42 = 72,081.24 : x
  2. Step 2: Convert to fraction form
    117,392.40/162,030.42 = 72,081.24/x
  3. Step 3: Cross multiply
    117,392.40x = 162,030.42 × 72,081.24
  4. Step 4: Simplify right side
    117,392.40x = 11,679,353,591.32
  5. Step 5: Solve for x
    x = 11,679,353,591.32/117,392.40
  6. Step 6: Final answer
    x = 99,489.86

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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.