Home / 141,320.73-195,020.32-77,657.16

Finding the Fourth Proportional to 141,320.73, 195,020.32 and 77,657.16

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Solution

The fourth proportional to 141,320.73, 195,020.32 and 77,657.16 is: 107,165.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,320.73 : 195,020.32 = 77,657.16 : x
  2. Step 2: Convert to fraction form
    141,320.73/195,020.32 = 77,657.16/x
  3. Step 3: Cross multiply
    141,320.73x = 195,020.32 × 77,657.16
  4. Step 4: Simplify right side
    141,320.73x = 15,144,724,193.49
  5. Step 5: Solve for x
    x = 15,144,724,193.49/141,320.73
  6. Step 6: Final answer
    x = 107,165.62

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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.