Home / 141,569.60-195,361.08-77,905.76

Finding the Fourth Proportional to 141,569.60, 195,361.08 and 77,905.76

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Solution

The fourth proportional to 141,569.60, 195,361.08 and 77,905.76 is: 107,507.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,569.60 : 195,361.08 = 77,905.76 : x
  2. Step 2: Convert to fraction form
    141,569.60/195,361.08 = 77,905.76/x
  3. Step 3: Cross multiply
    141,569.60x = 195,361.08 × 77,905.76
  4. Step 4: Simplify right side
    141,569.60x = 15,219,753,411.82
  5. Step 5: Solve for x
    x = 15,219,753,411.82/141,569.60
  6. Step 6: Final answer
    x = 107,507.21

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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.