Home / 124,821.52-172,211.64-71,068.51

Finding the Fourth Proportional to 124,821.52, 172,211.64 and 71,068.51

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Solution

The fourth proportional to 124,821.52, 172,211.64 and 71,068.51 is: 98,050.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,821.52 : 172,211.64 = 71,068.51 : x
  2. Step 2: Convert to fraction form
    124,821.52/172,211.64 = 71,068.51/x
  3. Step 3: Cross multiply
    124,821.52x = 172,211.64 × 71,068.51
  4. Step 4: Simplify right side
    124,821.52x = 12,238,824,659.46
  5. Step 5: Solve for x
    x = 12,238,824,659.46/124,821.52
  6. Step 6: Final answer
    x = 98,050.60

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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.