Home / 130,929.46-180,751.69-88,133.95

Finding the Fourth Proportional to 130,929.46, 180,751.69 and 88,133.95

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Solution

The fourth proportional to 130,929.46, 180,751.69 and 88,133.95 is: 121,671.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,929.46 : 180,751.69 = 88,133.95 : x
  2. Step 2: Convert to fraction form
    130,929.46/180,751.69 = 88,133.95/x
  3. Step 3: Cross multiply
    130,929.46x = 180,751.69 × 88,133.95
  4. Step 4: Simplify right side
    130,929.46x = 15,930,360,177.33
  5. Step 5: Solve for x
    x = 15,930,360,177.33/130,929.46
  6. Step 6: Final answer
    x = 121,671.32

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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.