Home / 140,810.77-194,319.30-76,280.68

Finding the Fourth Proportional to 140,810.77, 194,319.30 and 76,280.68

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Solution

The fourth proportional to 140,810.77, 194,319.30 and 76,280.68 is: 105,267.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,810.77 : 194,319.30 = 76,280.68 : x
  2. Step 2: Convert to fraction form
    140,810.77/194,319.30 = 76,280.68/x
  3. Step 3: Cross multiply
    140,810.77x = 194,319.30 × 76,280.68
  4. Step 4: Simplify right side
    140,810.77x = 14,822,808,341.12
  5. Step 5: Solve for x
    x = 14,822,808,341.12/140,810.77
  6. Step 6: Final answer
    x = 105,267.58

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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.