Home / 130,736.19-180,355.95-76,995.45

Finding the Fourth Proportional to 130,736.19, 180,355.95 and 76,995.45

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Solution

The fourth proportional to 130,736.19, 180,355.95 and 76,995.45 is: 106,218.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,736.19 : 180,355.95 = 76,995.45 : x
  2. Step 2: Convert to fraction form
    130,736.19/180,355.95 = 76,995.45/x
  3. Step 3: Cross multiply
    130,736.19x = 180,355.95 × 76,995.45
  4. Step 4: Simplify right side
    130,736.19x = 13,886,587,530.43
  5. Step 5: Solve for x
    x = 13,886,587,530.43/130,736.19
  6. Step 6: Final answer
    x = 106,218.39

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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.