Home / 131,621.48-181,637.66-71,192.13

Finding the Fourth Proportional to 131,621.48, 181,637.66 and 71,192.13

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Solution

The fourth proportional to 131,621.48, 181,637.66 and 71,192.13 is: 98,245.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,621.48 : 181,637.66 = 71,192.13 : x
  2. Step 2: Convert to fraction form
    131,621.48/181,637.66 = 71,192.13/x
  3. Step 3: Cross multiply
    131,621.48x = 181,637.66 × 71,192.13
  4. Step 4: Simplify right side
    131,621.48x = 12,931,171,547.66
  5. Step 5: Solve for x
    x = 12,931,171,547.66/131,621.48
  6. Step 6: Final answer
    x = 98,245.15

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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.