Home / 130,664.02-180,393.64-82,307.40

Finding the Fourth Proportional to 130,664.02, 180,393.64 and 82,307.40

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Solution

The fourth proportional to 130,664.02, 180,393.64 and 82,307.40 is: 113,632.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,664.02 : 180,393.64 = 82,307.40 : x
  2. Step 2: Convert to fraction form
    130,664.02/180,393.64 = 82,307.40/x
  3. Step 3: Cross multiply
    130,664.02x = 180,393.64 × 82,307.40
  4. Step 4: Simplify right side
    130,664.02x = 14,847,731,484.94
  5. Step 5: Solve for x
    x = 14,847,731,484.94/130,664.02
  6. Step 6: Final answer
    x = 113,632.90

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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.