Home / 131,880.17-181,994.67-71,451.23

Finding the Fourth Proportional to 131,880.17, 181,994.67 and 71,451.23

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Solution

The fourth proportional to 131,880.17, 181,994.67 and 71,451.23 is: 98,602.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,880.17 : 181,994.67 = 71,451.23 : x
  2. Step 2: Convert to fraction form
    131,880.17/181,994.67 = 71,451.23/x
  3. Step 3: Cross multiply
    131,880.17x = 181,994.67 × 71,451.23
  4. Step 4: Simplify right side
    131,880.17x = 13,003,742,114.97
  5. Step 5: Solve for x
    x = 13,003,742,114.97/131,880.17
  6. Step 6: Final answer
    x = 98,602.71

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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.