Home / 130,863.60-196,323.30-74,730.60

Finding the Fourth Proportional to 130,863.60, 196,323.30 and 74,730.60

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Solution

The fourth proportional to 130,863.60, 196,323.30 and 74,730.60 is: 112,111.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,863.60 : 196,323.30 = 74,730.60 : x
  2. Step 2: Convert to fraction form
    130,863.60/196,323.30 = 74,730.60/x
  3. Step 3: Cross multiply
    130,863.60x = 196,323.30 × 74,730.60
  4. Step 4: Simplify right side
    130,863.60x = 14,671,358,002.98
  5. Step 5: Solve for x
    x = 14,671,358,002.98/130,863.60
  6. Step 6: Final answer
    x = 112,111.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.