Home / 131,439.77-181,386.97-71,010.39

Finding the Fourth Proportional to 131,439.77, 181,386.97 and 71,010.39

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Solution

The fourth proportional to 131,439.77, 181,386.97 and 71,010.39 is: 97,994.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,439.77 : 181,386.97 = 71,010.39 : x
  2. Step 2: Convert to fraction form
    131,439.77/181,386.97 = 71,010.39/x
  3. Step 3: Cross multiply
    131,439.77x = 181,386.97 × 71,010.39
  4. Step 4: Simplify right side
    131,439.77x = 12,880,358,573.68
  5. Step 5: Solve for x
    x = 12,880,358,573.68/131,439.77
  6. Step 6: Final answer
    x = 97,994.38

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1.5x scale

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.