Home / 137,909.19-190,249.58-117,980.16

Finding the Fourth Proportional to 137,909.19, 190,249.58 and 117,980.16

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Solution

The fourth proportional to 137,909.19, 190,249.58 and 117,980.16 is: 162,756.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,909.19 : 190,249.58 = 117,980.16 : x
  2. Step 2: Convert to fraction form
    137,909.19/190,249.58 = 117,980.16/x
  3. Step 3: Cross multiply
    137,909.19x = 190,249.58 × 117,980.16
  4. Step 4: Simplify right side
    137,909.19x = 22,445,675,298.43
  5. Step 5: Solve for x
    x = 22,445,675,298.43/137,909.19
  6. Step 6: Final answer
    x = 162,756.92

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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.