Home / 126,069.30-174,005.28-78,358.68

Finding the Fourth Proportional to 126,069.30, 174,005.28 and 78,358.68

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Solution

The fourth proportional to 126,069.30, 174,005.28 and 78,358.68 is: 108,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,069.30 : 174,005.28 = 78,358.68 : x
  2. Step 2: Convert to fraction form
    126,069.30/174,005.28 = 78,358.68/x
  3. Step 3: Cross multiply
    126,069.30x = 174,005.28 × 78,358.68
  4. Step 4: Simplify right side
    126,069.30x = 13,634,824,053.83
  5. Step 5: Solve for x
    x = 13,634,824,053.83/126,069.30
  6. Step 6: Final answer
    x = 108,153.40

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1.5x scale

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.