Home / 130,533.84-180,133.20-76,822.02

Finding the Fourth Proportional to 130,533.84, 180,133.20 and 76,822.02

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Solution

The fourth proportional to 130,533.84, 180,133.20 and 76,822.02 is: 106,012.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,533.84 : 180,133.20 = 76,822.02 : x
  2. Step 2: Convert to fraction form
    130,533.84/180,133.20 = 76,822.02/x
  3. Step 3: Cross multiply
    130,533.84x = 180,133.20 × 76,822.02
  4. Step 4: Simplify right side
    130,533.84x = 13,838,196,293.06
  5. Step 5: Solve for x
    x = 13,838,196,293.06/130,533.84
  6. Step 6: Final answer
    x = 106,012.33

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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.