Home / 140,547.35-193,955.31-76,885.20

Finding the Fourth Proportional to 140,547.35, 193,955.31 and 76,885.20

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Solution

The fourth proportional to 140,547.35, 193,955.31 and 76,885.20 is: 106,101.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,547.35 : 193,955.31 = 76,885.20 : x
  2. Step 2: Convert to fraction form
    140,547.35/193,955.31 = 76,885.20/x
  3. Step 3: Cross multiply
    140,547.35x = 193,955.31 × 76,885.20
  4. Step 4: Simplify right side
    140,547.35x = 14,912,292,800.41
  5. Step 5: Solve for x
    x = 14,912,292,800.41/140,547.35
  6. Step 6: Final answer
    x = 106,101.56

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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.