Home / 124,182.99-171,346.59-81,225.45

Finding the Fourth Proportional to 124,182.99, 171,346.59 and 81,225.45

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Solution

The fourth proportional to 124,182.99, 171,346.59 and 81,225.45 is: 112,074.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,182.99 : 171,346.59 = 81,225.45 : x
  2. Step 2: Convert to fraction form
    124,182.99/171,346.59 = 81,225.45/x
  3. Step 3: Cross multiply
    124,182.99x = 171,346.59 × 81,225.45
  4. Step 4: Simplify right side
    124,182.99x = 13,917,703,878.72
  5. Step 5: Solve for x
    x = 13,917,703,878.72/124,182.99
  6. Step 6: Final answer
    x = 112,074.16

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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.