Home / 130,707.80-196,126.56-51,820.28

Finding the Fourth Proportional to 130,707.80, 196,126.56 and 51,820.28

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Solution

The fourth proportional to 130,707.80, 196,126.56 and 51,820.28 is: 77,756.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,707.80 : 196,126.56 = 51,820.28 : x
  2. Step 2: Convert to fraction form
    130,707.80/196,126.56 = 51,820.28/x
  3. Step 3: Cross multiply
    130,707.80x = 196,126.56 × 51,820.28
  4. Step 4: Simplify right side
    130,707.80x = 10,163,333,254.64
  5. Step 5: Solve for x
    x = 10,163,333,254.64/130,707.80
  6. Step 6: Final answer
    x = 77,756.13

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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.