Home / 138,298.42-190,479.09-119,402.74

Finding the Fourth Proportional to 138,298.42, 190,479.09 and 119,402.74

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Solution

The fourth proportional to 138,298.42, 190,479.09 and 119,402.74 is: 164,453.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,298.42 : 190,479.09 = 119,402.74 : x
  2. Step 2: Convert to fraction form
    138,298.42/190,479.09 = 119,402.74/x
  3. Step 3: Cross multiply
    138,298.42x = 190,479.09 × 119,402.74
  4. Step 4: Simplify right side
    138,298.42x = 22,743,725,258.71
  5. Step 5: Solve for x
    x = 22,743,725,258.71/138,298.42
  6. Step 6: Final answer
    x = 164,453.98

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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.