Home / 130,397.32-179,935.86-103,604.68

Finding the Fourth Proportional to 130,397.32, 179,935.86 and 103,604.68

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Solution

The fourth proportional to 130,397.32, 179,935.86 and 103,604.68 is: 142,964.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,397.32 : 179,935.86 = 103,604.68 : x
  2. Step 2: Convert to fraction form
    130,397.32/179,935.86 = 103,604.68/x
  3. Step 3: Cross multiply
    130,397.32x = 179,935.86 × 103,604.68
  4. Step 4: Simplify right side
    130,397.32x = 18,642,197,195.82
  5. Step 5: Solve for x
    x = 18,642,197,195.82/130,397.32
  6. Step 6: Final answer
    x = 142,964.57

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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.