Home / 194,935.40-292,403.10-138,948.20

Finding the Fourth Proportional to 194,935.40, 292,403.10 and 138,948.20

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Solution

The fourth proportional to 194,935.40, 292,403.10 and 138,948.20 is: 208,422.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,935.40 : 292,403.10 = 138,948.20 : x
  2. Step 2: Convert to fraction form
    194,935.40/292,403.10 = 138,948.20/x
  3. Step 3: Cross multiply
    194,935.40x = 292,403.10 × 138,948.20
  4. Step 4: Simplify right side
    194,935.40x = 40,628,884,419.42
  5. Step 5: Solve for x
    x = 40,628,884,419.42/194,935.40
  6. Step 6: Final answer
    x = 208,422.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.