Home / 130,643.01-180,282.11-76,930.29

Finding the Fourth Proportional to 130,643.01, 180,282.11 and 76,930.29

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Solution

The fourth proportional to 130,643.01, 180,282.11 and 76,930.29 is: 106,160.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,643.01 : 180,282.11 = 76,930.29 : x
  2. Step 2: Convert to fraction form
    130,643.01/180,282.11 = 76,930.29/x
  3. Step 3: Cross multiply
    130,643.01x = 180,282.11 × 76,930.29
  4. Step 4: Simplify right side
    130,643.01x = 13,869,154,619.46
  5. Step 5: Solve for x
    x = 13,869,154,619.46/130,643.01
  6. Step 6: Final answer
    x = 106,160.71

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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.