Home / 125,901.90-188,998.65-76,038.30

Finding the Fourth Proportional to 125,901.90, 188,998.65 and 76,038.30

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Solution

The fourth proportional to 125,901.90, 188,998.65 and 76,038.30 is: 114,145.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,901.90 : 188,998.65 = 76,038.30 : x
  2. Step 2: Convert to fraction form
    125,901.90/188,998.65 = 76,038.30/x
  3. Step 3: Cross multiply
    125,901.90x = 188,998.65 × 76,038.30
  4. Step 4: Simplify right side
    125,901.90x = 14,371,136,048.30
  5. Step 5: Solve for x
    x = 14,371,136,048.30/125,901.90
  6. Step 6: Final answer
    x = 114,145.51

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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.