Home / 131,426.75-181,368.93-71,810.75

Finding the Fourth Proportional to 131,426.75, 181,368.93 and 71,810.75

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Solution

The fourth proportional to 131,426.75, 181,368.93 and 71,810.75 is: 99,098.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,426.75 : 181,368.93 = 71,810.75 : x
  2. Step 2: Convert to fraction form
    131,426.75/181,368.93 = 71,810.75/x
  3. Step 3: Cross multiply
    131,426.75x = 181,368.93 × 71,810.75
  4. Step 4: Simplify right side
    131,426.75x = 13,024,238,890.00
  5. Step 5: Solve for x
    x = 13,024,238,890.00/131,426.75
  6. Step 6: Final answer
    x = 99,098.84

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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.