Home / 131,835.04-181,932.90-71,406.40

Finding the Fourth Proportional to 131,835.04, 181,932.90 and 71,406.40

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Solution

The fourth proportional to 131,835.04, 181,932.90 and 71,406.40 is: 98,541.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,835.04 : 181,932.90 = 71,406.40 : x
  2. Step 2: Convert to fraction form
    131,835.04/181,932.90 = 71,406.40/x
  3. Step 3: Cross multiply
    131,835.04x = 181,932.90 × 71,406.40
  4. Step 4: Simplify right side
    131,835.04x = 12,991,173,430.56
  5. Step 5: Solve for x
    x = 12,991,173,430.56/131,835.04
  6. Step 6: Final answer
    x = 98,541.13

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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.