Home / 84,817.14-126,983.79-67,312.50

Finding the Fourth Proportional to 84,817.14, 126,983.79 and 67,312.50

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Solution

The fourth proportional to 84,817.14, 126,983.79 and 67,312.50 is: 100,776.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,817.14 : 126,983.79 = 67,312.50 : x
  2. Step 2: Convert to fraction form
    84,817.14/126,983.79 = 67,312.50/x
  3. Step 3: Cross multiply
    84,817.14x = 126,983.79 × 67,312.50
  4. Step 4: Simplify right side
    84,817.14x = 8,547,596,364.38
  5. Step 5: Solve for x
    x = 8,547,596,364.38/84,817.14
  6. Step 6: Final answer
    x = 100,776.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.