Home / 126,347.09-189,746.52-121,267.55

Finding the Fourth Proportional to 126,347.09, 189,746.52 and 121,267.55

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Solution

The fourth proportional to 126,347.09, 189,746.52 and 121,267.55 is: 182,118.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,347.09 : 189,746.52 = 121,267.55 : x
  2. Step 2: Convert to fraction form
    126,347.09/189,746.52 = 121,267.55/x
  3. Step 3: Cross multiply
    126,347.09x = 189,746.52 × 121,267.55
  4. Step 4: Simplify right side
    126,347.09x = 23,010,095,621.04
  5. Step 5: Solve for x
    x = 23,010,095,621.04/126,347.09
  6. Step 6: Final answer
    x = 182,118.14

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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.