Home / 137,857.04-190,246.04-77,427.80

Finding the Fourth Proportional to 137,857.04, 190,246.04 and 77,427.80

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Solution

The fourth proportional to 137,857.04, 190,246.04 and 77,427.80 is: 106,852.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,857.04 : 190,246.04 = 77,427.80 : x
  2. Step 2: Convert to fraction form
    137,857.04/190,246.04 = 77,427.80/x
  3. Step 3: Cross multiply
    137,857.04x = 190,246.04 × 77,427.80
  4. Step 4: Simplify right side
    137,857.04x = 14,730,332,335.91
  5. Step 5: Solve for x
    x = 14,730,332,335.91/137,857.04
  6. Step 6: Final answer
    x = 106,852.23

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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.