Home / 97,742.90-146,927.55-90,809.30

Finding the Fourth Proportional to 97,742.90, 146,927.55 and 90,809.30

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Solution

The fourth proportional to 97,742.90, 146,927.55 and 90,809.30 is: 136,504.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,742.90 : 146,927.55 = 90,809.30 : x
  2. Step 2: Convert to fraction form
    97,742.90/146,927.55 = 90,809.30/x
  3. Step 3: Cross multiply
    97,742.90x = 146,927.55 × 90,809.30
  4. Step 4: Simplify right side
    97,742.90x = 13,342,387,966.22
  5. Step 5: Solve for x
    x = 13,342,387,966.22/97,742.90
  6. Step 6: Final answer
    x = 136,504.93

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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.