Home / 101,985.15-140,719.64-59,545.47

Finding the Fourth Proportional to 101,985.15, 140,719.64 and 59,545.47

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Solution

The fourth proportional to 101,985.15, 140,719.64 and 59,545.47 is: 82,161.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,985.15 : 140,719.64 = 59,545.47 : x
  2. Step 2: Convert to fraction form
    101,985.15/140,719.64 = 59,545.47/x
  3. Step 3: Cross multiply
    101,985.15x = 140,719.64 × 59,545.47
  4. Step 4: Simplify right side
    101,985.15x = 8,379,216,804.30
  5. Step 5: Solve for x
    x = 8,379,216,804.30/101,985.15
  6. Step 6: Final answer
    x = 82,161.15

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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.