Home / 100,577.34-138,777.43-68,337.52

Finding the Fourth Proportional to 100,577.34, 138,777.43 and 68,337.52

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Solution

The fourth proportional to 100,577.34, 138,777.43 and 68,337.52 is: 94,292.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,577.34 : 138,777.43 = 68,337.52 : x
  2. Step 2: Convert to fraction form
    100,577.34/138,777.43 = 68,337.52/x
  3. Step 3: Cross multiply
    100,577.34x = 138,777.43 × 68,337.52
  4. Step 4: Simplify right side
    100,577.34x = 9,483,705,398.17
  5. Step 5: Solve for x
    x = 9,483,705,398.17/100,577.34
  6. Step 6: Final answer
    x = 94,292.66

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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.