Home / 101,682.43-140,330.15-56,374.62

Finding the Fourth Proportional to 101,682.43, 140,330.15 and 56,374.62

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Solution

The fourth proportional to 101,682.43, 140,330.15 and 56,374.62 is: 77,801.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,682.43 : 140,330.15 = 56,374.62 : x
  2. Step 2: Convert to fraction form
    101,682.43/140,330.15 = 56,374.62/x
  3. Step 3: Cross multiply
    101,682.43x = 140,330.15 × 56,374.62
  4. Step 4: Simplify right side
    101,682.43x = 7,911,058,810.32
  5. Step 5: Solve for x
    x = 7,911,058,810.32/101,682.43
  6. Step 6: Final answer
    x = 77,801.63

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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.