Home / 130,483.76-180,103.04-76,786.04

Finding the Fourth Proportional to 130,483.76, 180,103.04 and 76,786.04

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Solution

The fourth proportional to 130,483.76, 180,103.04 and 76,786.04 is: 105,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,483.76 : 180,103.04 = 76,786.04 : x
  2. Step 2: Convert to fraction form
    130,483.76/180,103.04 = 76,786.04/x
  3. Step 3: Cross multiply
    130,483.76x = 180,103.04 × 76,786.04
  4. Step 4: Simplify right side
    130,483.76x = 13,829,399,233.56
  5. Step 5: Solve for x
    x = 13,829,399,233.56/130,483.76
  6. Step 6: Final answer
    x = 105,985.60

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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.