Home / 90,746.40-136,184.40-51,261.60

Finding the Fourth Proportional to 90,746.40, 136,184.40 and 51,261.60

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Solution

The fourth proportional to 90,746.40, 136,184.40 and 51,261.60 is: 76,929.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,746.40 : 136,184.40 = 51,261.60 : x
  2. Step 2: Convert to fraction form
    90,746.40/136,184.40 = 51,261.60/x
  3. Step 3: Cross multiply
    90,746.40x = 136,184.40 × 51,261.60
  4. Step 4: Simplify right side
    90,746.40x = 6,981,030,239.04
  5. Step 5: Solve for x
    x = 6,981,030,239.04/90,746.40
  6. Step 6: Final answer
    x = 76,929.00

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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.