Home / 130,797.46-180,498.78-77,084.74

Finding the Fourth Proportional to 130,797.46, 180,498.78 and 77,084.74

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Solution

The fourth proportional to 130,797.46, 180,498.78 and 77,084.74 is: 106,375.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,797.46 : 180,498.78 = 77,084.74 : x
  2. Step 2: Convert to fraction form
    130,797.46/180,498.78 = 77,084.74/x
  3. Step 3: Cross multiply
    130,797.46x = 180,498.78 × 77,084.74
  4. Step 4: Simplify right side
    130,797.46x = 13,913,701,526.62
  5. Step 5: Solve for x
    x = 13,913,701,526.62/130,797.46
  6. Step 6: Final answer
    x = 106,375.93

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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.