Home / 130,472.76-180,087.84-76,775.04

Finding the Fourth Proportional to 130,472.76, 180,087.84 and 76,775.04

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Solution

The fourth proportional to 130,472.76, 180,087.84 and 76,775.04 is: 105,970.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,472.76 : 180,087.84 = 76,775.04 : x
  2. Step 2: Convert to fraction form
    130,472.76/180,087.84 = 76,775.04/x
  3. Step 3: Cross multiply
    130,472.76x = 180,087.84 × 76,775.04
  4. Step 4: Simplify right side
    130,472.76x = 13,826,251,119.51
  5. Step 5: Solve for x
    x = 13,826,251,119.51/130,472.76
  6. Step 6: Final answer
    x = 105,970.40

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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.