Home / 195,420.20-292,998.90-77,030.60

Finding the Fourth Proportional to 195,420.20, 292,998.90 and 77,030.60

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Solution

The fourth proportional to 195,420.20, 292,998.90 and 77,030.60 is: 115,494.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,420.20 : 292,998.90 = 77,030.60 : x
  2. Step 2: Convert to fraction form
    195,420.20/292,998.90 = 77,030.60/x
  3. Step 3: Cross multiply
    195,420.20x = 292,998.90 × 77,030.60
  4. Step 4: Simplify right side
    195,420.20x = 22,569,881,066.34
  5. Step 5: Solve for x
    x = 22,569,881,066.34/195,420.20
  6. Step 6: Final answer
    x = 115,494.10

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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.