Home / 130,332.88-195,483.96-102,638.80

Finding the Fourth Proportional to 130,332.88, 195,483.96 and 102,638.80

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Solution

The fourth proportional to 130,332.88, 195,483.96 and 102,638.80 is: 153,946.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,332.88 : 195,483.96 = 102,638.80 : x
  2. Step 2: Convert to fraction form
    130,332.88/195,483.96 = 102,638.80/x
  3. Step 3: Cross multiply
    130,332.88x = 195,483.96 × 102,638.80
  4. Step 4: Simplify right side
    130,332.88x = 20,064,239,073.65
  5. Step 5: Solve for x
    x = 20,064,239,073.65/130,332.88
  6. Step 6: Final answer
    x = 153,946.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.