Home / 131,741.94-181,803.93-71,312.40

Finding the Fourth Proportional to 131,741.94, 181,803.93 and 71,312.40

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Solution

The fourth proportional to 131,741.94, 181,803.93 and 71,312.40 is: 98,411.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,741.94 : 181,803.93 = 71,312.40 : x
  2. Step 2: Convert to fraction form
    131,741.94/181,803.93 = 71,312.40/x
  3. Step 3: Cross multiply
    131,741.94x = 181,803.93 × 71,312.40
  4. Step 4: Simplify right side
    131,741.94x = 12,964,874,310.31
  5. Step 5: Solve for x
    x = 12,964,874,310.31/131,741.94
  6. Step 6: Final answer
    x = 98,411.14

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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.