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Finding the Fourth Proportional to 101,818.76, 140,510.58 and 59,379.08

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Solution

The fourth proportional to 101,818.76, 140,510.58 and 59,379.08 is: 81,943.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,818.76 : 140,510.58 = 59,379.08 : x
  2. Step 2: Convert to fraction form
    101,818.76/140,510.58 = 59,379.08/x
  3. Step 3: Cross multiply
    101,818.76x = 140,510.58 × 59,379.08
  4. Step 4: Simplify right side
    101,818.76x = 8,343,388,970.67
  5. Step 5: Solve for x
    x = 8,343,388,970.67/101,818.76
  6. Step 6: Final answer
    x = 81,943.53

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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.