Home / 130,641.66-180,291.42-76,928.94

Finding the Fourth Proportional to 130,641.66, 180,291.42 and 76,928.94

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Solution

The fourth proportional to 130,641.66, 180,291.42 and 76,928.94 is: 106,165.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,641.66 : 180,291.42 = 76,928.94 : x
  2. Step 2: Convert to fraction form
    130,641.66/180,291.42 = 76,928.94/x
  3. Step 3: Cross multiply
    130,641.66x = 180,291.42 × 76,928.94
  4. Step 4: Simplify right side
    130,641.66x = 13,869,627,831.69
  5. Step 5: Solve for x
    x = 13,869,627,831.69/130,641.66
  6. Step 6: Final answer
    x = 106,165.43

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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.