Home / 102,077.04-140,872.70-56,765.16

Finding the Fourth Proportional to 102,077.04, 140,872.70 and 56,765.16

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Solution

The fourth proportional to 102,077.04, 140,872.70 and 56,765.16 is: 78,339.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,077.04 : 140,872.70 = 56,765.16 : x
  2. Step 2: Convert to fraction form
    102,077.04/140,872.70 = 56,765.16/x
  3. Step 3: Cross multiply
    102,077.04x = 140,872.70 × 56,765.16
  4. Step 4: Simplify right side
    102,077.04x = 7,996,661,071.31
  5. Step 5: Solve for x
    x = 7,996,661,071.31/102,077.04
  6. Step 6: Final answer
    x = 78,339.47

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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.