Home / 210,784.12-290,892.73-124,792.45

Finding the Fourth Proportional to 210,784.12, 290,892.73 and 124,792.45

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Solution

The fourth proportional to 210,784.12, 290,892.73 and 124,792.45 is: 172,219.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,784.12 : 290,892.73 = 124,792.45 : x
  2. Step 2: Convert to fraction form
    210,784.12/290,892.73 = 124,792.45/x
  3. Step 3: Cross multiply
    210,784.12x = 290,892.73 × 124,792.45
  4. Step 4: Simplify right side
    210,784.12x = 36,301,216,463.89
  5. Step 5: Solve for x
    x = 36,301,216,463.89/210,784.12
  6. Step 6: Final answer
    x = 172,219.88

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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.