Home / 131,831.01-181,927.35-71,402.31

Finding the Fourth Proportional to 131,831.01, 181,927.35 and 71,402.31

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Solution

The fourth proportional to 131,831.01, 181,927.35 and 71,402.31 is: 98,535.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,831.01 : 181,927.35 = 71,402.31 : x
  2. Step 2: Convert to fraction form
    131,831.01/181,927.35 = 71,402.31/x
  3. Step 3: Cross multiply
    131,831.01x = 181,927.35 × 71,402.31
  4. Step 4: Simplify right side
    131,831.01x = 12,990,033,042.18
  5. Step 5: Solve for x
    x = 12,990,033,042.18/131,831.01
  6. Step 6: Final answer
    x = 98,535.49

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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.