Home / 129,361.07-193,810.75-70,158.98

Finding the Fourth Proportional to 129,361.07, 193,810.75 and 70,158.98

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Solution

The fourth proportional to 129,361.07, 193,810.75 and 70,158.98 is: 105,113.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,361.07 : 193,810.75 = 70,158.98 : x
  2. Step 2: Convert to fraction form
    129,361.07/193,810.75 = 70,158.98/x
  3. Step 3: Cross multiply
    129,361.07x = 193,810.75 × 70,158.98
  4. Step 4: Simplify right side
    129,361.07x = 13,597,564,842.16
  5. Step 5: Solve for x
    x = 13,597,564,842.16/129,361.07
  6. Step 6: Final answer
    x = 105,113.27

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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.