Home / 102,347.15-141,075.47-68,288.27

Finding the Fourth Proportional to 102,347.15, 141,075.47 and 68,288.27

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Solution

The fourth proportional to 102,347.15, 141,075.47 and 68,288.27 is: 94,128.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,347.15 : 141,075.47 = 68,288.27 : x
  2. Step 2: Convert to fraction form
    102,347.15/141,075.47 = 68,288.27/x
  3. Step 3: Cross multiply
    102,347.15x = 141,075.47 × 68,288.27
  4. Step 4: Simplify right side
    102,347.15x = 9,633,799,251.08
  5. Step 5: Solve for x
    x = 9,633,799,251.08/102,347.15
  6. Step 6: Final answer
    x = 94,128.66

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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.