Home / 136,869.40-205,215.30-57,962.20

Finding the Fourth Proportional to 136,869.40, 205,215.30 and 57,962.20

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Solution

The fourth proportional to 136,869.40, 205,215.30 and 57,962.20 is: 86,905.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,869.40 : 205,215.30 = 57,962.20 : x
  2. Step 2: Convert to fraction form
    136,869.40/205,215.30 = 57,962.20/x
  3. Step 3: Cross multiply
    136,869.40x = 205,215.30 × 57,962.20
  4. Step 4: Simplify right side
    136,869.40x = 11,894,730,261.66
  5. Step 5: Solve for x
    x = 11,894,730,261.66/136,869.40
  6. Step 6: Final answer
    x = 86,905.69

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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.