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Finding the Fourth Proportional to 101,818.28, 140,526.02 and 56,510.86

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Solution

The fourth proportional to 101,818.28, 140,526.02 and 56,510.86 is: 77,994.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,818.28 : 140,526.02 = 56,510.86 : x
  2. Step 2: Convert to fraction form
    101,818.28/140,526.02 = 56,510.86/x
  3. Step 3: Cross multiply
    101,818.28x = 140,526.02 × 56,510.86
  4. Step 4: Simplify right side
    101,818.28x = 7,941,246,242.58
  5. Step 5: Solve for x
    x = 7,941,246,242.58/101,818.28
  6. Step 6: Final answer
    x = 77,994.31

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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.