Home / 125,141.93-187,743.29-40,905.98

Finding the Fourth Proportional to 125,141.93, 187,743.29 and 40,905.98

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Solution

The fourth proportional to 125,141.93, 187,743.29 and 40,905.98 is: 61,368.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,141.93 : 187,743.29 = 40,905.98 : x
  2. Step 2: Convert to fraction form
    125,141.93/187,743.29 = 40,905.98/x
  3. Step 3: Cross multiply
    125,141.93x = 187,743.29 × 40,905.98
  4. Step 4: Simplify right side
    125,141.93x = 7,679,822,826.67
  5. Step 5: Solve for x
    x = 7,679,822,826.67/125,141.93
  6. Step 6: Final answer
    x = 61,368.90

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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.