Home / 126,021.04-189,031.48-118,322.80

Finding the Fourth Proportional to 126,021.04, 189,031.48 and 118,322.80

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Solution

The fourth proportional to 126,021.04, 189,031.48 and 118,322.80 is: 177,484.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,021.04 : 189,031.48 = 118,322.80 : x
  2. Step 2: Convert to fraction form
    126,021.04/189,031.48 = 118,322.80/x
  3. Step 3: Cross multiply
    126,021.04x = 189,031.48 × 118,322.80
  4. Step 4: Simplify right side
    126,021.04x = 22,366,734,001.74
  5. Step 5: Solve for x
    x = 22,366,734,001.74/126,021.04
  6. Step 6: Final answer
    x = 177,484.12

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1.5x scale

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.