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Finding the Fourth Proportional to 152,792.15, 210,849.90 and 84,805.16

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Solution

The fourth proportional to 152,792.15, 210,849.90 and 84,805.16 is: 117,029.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,792.15 : 210,849.90 = 84,805.16 : x
  2. Step 2: Convert to fraction form
    152,792.15/210,849.90 = 84,805.16/x
  3. Step 3: Cross multiply
    152,792.15x = 210,849.90 × 84,805.16
  4. Step 4: Simplify right side
    152,792.15x = 17,881,159,505.48
  5. Step 5: Solve for x
    x = 17,881,159,505.48/152,792.15
  6. Step 6: Final answer
    x = 117,029.31

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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.