Home / 102,009.15-140,772.09-56,069.85

Finding the Fourth Proportional to 102,009.15, 140,772.09 and 56,069.85

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Solution

The fourth proportional to 102,009.15, 140,772.09 and 56,069.85 is: 77,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,009.15 : 140,772.09 = 56,069.85 : x
  2. Step 2: Convert to fraction form
    102,009.15/140,772.09 = 56,069.85/x
  3. Step 3: Cross multiply
    102,009.15x = 140,772.09 × 56,069.85
  4. Step 4: Simplify right side
    102,009.15x = 7,893,069,970.49
  5. Step 5: Solve for x
    x = 7,893,069,970.49/102,009.15
  6. Step 6: Final answer
    x = 77,376.10

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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.