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Finding the Fourth Proportional to 101,663.16, 140,293.14 and 56,340.21

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Solution

The fourth proportional to 101,663.16, 140,293.14 and 56,340.21 is: 77,748.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,663.16 : 140,293.14 = 56,340.21 : x
  2. Step 2: Convert to fraction form
    101,663.16/140,293.14 = 56,340.21/x
  3. Step 3: Cross multiply
    101,663.16x = 140,293.14 × 56,340.21
  4. Step 4: Simplify right side
    101,663.16x = 7,904,144,969.16
  5. Step 5: Solve for x
    x = 7,904,144,969.16/101,663.16
  6. Step 6: Final answer
    x = 77,748.37

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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.