Home / 97,450.84-134,611.23-78,402.34

Finding the Fourth Proportional to 97,450.84, 134,611.23 and 78,402.34

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Solution

The fourth proportional to 97,450.84, 134,611.23 and 78,402.34 is: 108,299.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,450.84 : 134,611.23 = 78,402.34 : x
  2. Step 2: Convert to fraction form
    97,450.84/134,611.23 = 78,402.34/x
  3. Step 3: Cross multiply
    97,450.84x = 134,611.23 × 78,402.34
  4. Step 4: Simplify right side
    97,450.84x = 10,553,835,422.28
  5. Step 5: Solve for x
    x = 10,553,835,422.28/97,450.84
  6. Step 6: Final answer
    x = 108,299.07

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1.5x scale

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.