Home / 137,300.22-189,473.36-76,870.62

Finding the Fourth Proportional to 137,300.22, 189,473.36 and 76,870.62

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Solution

The fourth proportional to 137,300.22, 189,473.36 and 76,870.62 is: 106,080.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,300.22 : 189,473.36 = 76,870.62 : x
  2. Step 2: Convert to fraction form
    137,300.22/189,473.36 = 76,870.62/x
  3. Step 3: Cross multiply
    137,300.22x = 189,473.36 × 76,870.62
  4. Step 4: Simplify right side
    137,300.22x = 14,564,934,656.68
  5. Step 5: Solve for x
    x = 14,564,934,656.68/137,300.22
  6. Step 6: Final answer
    x = 106,080.93

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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.