Home / 130,493.16-180,077.58-76,766.40

Finding the Fourth Proportional to 130,493.16, 180,077.58 and 76,766.40

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Solution

The fourth proportional to 130,493.16, 180,077.58 and 76,766.40 is: 105,935.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,493.16 : 180,077.58 = 76,766.40 : x
  2. Step 2: Convert to fraction form
    130,493.16/180,077.58 = 76,766.40/x
  3. Step 3: Cross multiply
    130,493.16x = 180,077.58 × 76,766.40
  4. Step 4: Simplify right side
    130,493.16x = 13,823,907,537.31
  5. Step 5: Solve for x
    x = 13,823,907,537.31/130,493.16
  6. Step 6: Final answer
    x = 105,935.88

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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.