Home / 130,937.60-196,310.40-52,012.80

Finding the Fourth Proportional to 130,937.60, 196,310.40 and 52,012.80

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Solution

The fourth proportional to 130,937.60, 196,310.40 and 52,012.80 is: 77,981.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,937.60 : 196,310.40 = 52,012.80 : x
  2. Step 2: Convert to fraction form
    130,937.60/196,310.40 = 52,012.80/x
  3. Step 3: Cross multiply
    130,937.60x = 196,310.40 × 52,012.80
  4. Step 4: Simplify right side
    130,937.60x = 10,210,653,573.12
  5. Step 5: Solve for x
    x = 10,210,653,573.12/130,937.60
  6. Step 6: Final answer
    x = 77,981.07

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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.