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Finding the Fourth Proportional to 124,809.66, 172,210.20 and 73,825.20

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Solution

The fourth proportional to 124,809.66, 172,210.20 and 73,825.20 is: 101,862.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,809.66 : 172,210.20 = 73,825.20 : x
  2. Step 2: Convert to fraction form
    124,809.66/172,210.20 = 73,825.20/x
  3. Step 3: Cross multiply
    124,809.66x = 172,210.20 × 73,825.20
  4. Step 4: Simplify right side
    124,809.66x = 12,713,452,457.04
  5. Step 5: Solve for x
    x = 12,713,452,457.04/124,809.66
  6. Step 6: Final answer
    x = 101,862.73

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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.