Home / 129,158.84-193,737.02-76,530.44

Finding the Fourth Proportional to 129,158.84, 193,737.02 and 76,530.44

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Solution

The fourth proportional to 129,158.84, 193,737.02 and 76,530.44 is: 114,794.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,158.84 : 193,737.02 = 76,530.44 : x
  2. Step 2: Convert to fraction form
    129,158.84/193,737.02 = 76,530.44/x
  3. Step 3: Cross multiply
    129,158.84x = 193,737.02 × 76,530.44
  4. Step 4: Simplify right side
    129,158.84x = 14,826,779,384.89
  5. Step 5: Solve for x
    x = 14,826,779,384.89/129,158.84
  6. Step 6: Final answer
    x = 114,794.93

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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.