Home / 131,370.85-181,296.80-74,032.98

Finding the Fourth Proportional to 131,370.85, 181,296.80 and 74,032.98

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Solution

The fourth proportional to 131,370.85, 181,296.80 and 74,032.98 is: 102,168.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,370.85 : 181,296.80 = 74,032.98 : x
  2. Step 2: Convert to fraction form
    131,370.85/181,296.80 = 74,032.98/x
  3. Step 3: Cross multiply
    131,370.85x = 181,296.80 × 74,032.98
  4. Step 4: Simplify right side
    131,370.85x = 13,421,942,368.46
  5. Step 5: Solve for x
    x = 13,421,942,368.46/131,370.85
  6. Step 6: Final answer
    x = 102,168.35

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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.