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Finding the Fourth Proportional to 101,755.16, 140,422.52 and 56,437.36

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Solution

The fourth proportional to 101,755.16, 140,422.52 and 56,437.36 is: 77,883.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,755.16 : 140,422.52 = 56,437.36 : x
  2. Step 2: Convert to fraction form
    101,755.16/140,422.52 = 56,437.36/x
  3. Step 3: Cross multiply
    101,755.16x = 140,422.52 × 56,437.36
  4. Step 4: Simplify right side
    101,755.16x = 7,925,076,313.35
  5. Step 5: Solve for x
    x = 7,925,076,313.35/101,755.16
  6. Step 6: Final answer
    x = 77,883.78

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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.