Home / 130,669.71-180,302.33-76,965.43

Finding the Fourth Proportional to 130,669.71, 180,302.33 and 76,965.43

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Solution

The fourth proportional to 130,669.71, 180,302.33 and 76,965.43 is: 106,199.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,669.71 : 180,302.33 = 76,965.43 : x
  2. Step 2: Convert to fraction form
    130,669.71/180,302.33 = 76,965.43/x
  3. Step 3: Cross multiply
    130,669.71x = 180,302.33 × 76,965.43
  4. Step 4: Simplify right side
    130,669.71x = 13,877,046,358.45
  5. Step 5: Solve for x
    x = 13,877,046,358.45/130,669.71
  6. Step 6: Final answer
    x = 106,199.41

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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.