Home / 131,089.53-180,904.82-74,501.31

Finding the Fourth Proportional to 131,089.53, 180,904.82 and 74,501.31

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Solution

The fourth proportional to 131,089.53, 180,904.82 and 74,501.31 is: 102,812.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,089.53 : 180,904.82 = 74,501.31 : x
  2. Step 2: Convert to fraction form
    131,089.53/180,904.82 = 74,501.31/x
  3. Step 3: Cross multiply
    131,089.53x = 180,904.82 × 74,501.31
  4. Step 4: Simplify right side
    131,089.53x = 13,477,645,702.81
  5. Step 5: Solve for x
    x = 13,477,645,702.81/131,089.53
  6. Step 6: Final answer
    x = 102,812.53

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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.