Home / 130,159.20-195,349.64-92,810.78

Finding the Fourth Proportional to 130,159.20, 195,349.64 and 92,810.78

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Solution

The fourth proportional to 130,159.20, 195,349.64 and 92,810.78 is: 139,295.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,159.20 : 195,349.64 = 92,810.78 : x
  2. Step 2: Convert to fraction form
    130,159.20/195,349.64 = 92,810.78/x
  3. Step 3: Cross multiply
    130,159.20x = 195,349.64 × 92,810.78
  4. Step 4: Simplify right side
    130,159.20x = 18,130,552,461.12
  5. Step 5: Solve for x
    x = 18,130,552,461.12/130,159.20
  6. Step 6: Final answer
    x = 139,295.21

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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.