Home / 130,513.28-180,151.09-76,795.70

Finding the Fourth Proportional to 130,513.28, 180,151.09 and 76,795.70

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Solution

The fourth proportional to 130,513.28, 180,151.09 and 76,795.70 is: 106,003.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,513.28 : 180,151.09 = 76,795.70 : x
  2. Step 2: Convert to fraction form
    130,513.28/180,151.09 = 76,795.70/x
  3. Step 3: Cross multiply
    130,513.28x = 180,151.09 × 76,795.70
  4. Step 4: Simplify right side
    130,513.28x = 13,834,827,969.57
  5. Step 5: Solve for x
    x = 13,834,827,969.57/130,513.28
  6. Step 6: Final answer
    x = 106,003.22

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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.