Home / 130,627.64-180,282.81-76,917.63

Finding the Fourth Proportional to 130,627.64, 180,282.81 and 76,917.63

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Solution

The fourth proportional to 130,627.64, 180,282.81 and 76,917.63 is: 106,156.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,627.64 : 180,282.81 = 76,917.63 : x
  2. Step 2: Convert to fraction form
    130,627.64/180,282.81 = 76,917.63/x
  3. Step 3: Cross multiply
    130,627.64x = 180,282.81 × 76,917.63
  4. Step 4: Simplify right side
    130,627.64x = 13,866,926,474.94
  5. Step 5: Solve for x
    x = 13,866,926,474.94/130,627.64
  6. Step 6: Final answer
    x = 106,156.15

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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.