Home / 124,081.68-171,249.32-70,386.16

Finding the Fourth Proportional to 124,081.68, 171,249.32 and 70,386.16

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Solution

The fourth proportional to 124,081.68, 171,249.32 and 70,386.16 is: 97,142.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,081.68 : 171,249.32 = 70,386.16 : x
  2. Step 2: Convert to fraction form
    124,081.68/171,249.32 = 70,386.16/x
  3. Step 3: Cross multiply
    124,081.68x = 171,249.32 × 70,386.16
  4. Step 4: Simplify right side
    124,081.68x = 12,053,582,037.41
  5. Step 5: Solve for x
    x = 12,053,582,037.41/124,081.68
  6. Step 6: Final answer
    x = 97,142.32

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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.