Home / 130,540.60-195,875.70-51,657.40

Finding the Fourth Proportional to 130,540.60, 195,875.70 and 51,657.40

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Solution

The fourth proportional to 130,540.60, 195,875.70 and 51,657.40 is: 77,511.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,540.60 : 195,875.70 = 51,657.40 : x
  2. Step 2: Convert to fraction form
    130,540.60/195,875.70 = 51,657.40/x
  3. Step 3: Cross multiply
    130,540.60x = 195,875.70 × 51,657.40
  4. Step 4: Simplify right side
    130,540.60x = 10,118,429,385.18
  5. Step 5: Solve for x
    x = 10,118,429,385.18/130,540.60
  6. Step 6: Final answer
    x = 77,511.74

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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.