Home / 126,878.58-175,098.69-70,290.18

Finding the Fourth Proportional to 126,878.58, 175,098.69 and 70,290.18

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Solution

The fourth proportional to 126,878.58, 175,098.69 and 70,290.18 is: 97,003.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,878.58 : 175,098.69 = 70,290.18 : x
  2. Step 2: Convert to fraction form
    126,878.58/175,098.69 = 70,290.18/x
  3. Step 3: Cross multiply
    126,878.58x = 175,098.69 × 70,290.18
  4. Step 4: Simplify right side
    126,878.58x = 12,307,718,437.86
  5. Step 5: Solve for x
    x = 12,307,718,437.86/126,878.58
  6. Step 6: Final answer
    x = 97,003.91

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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.