Home / 105,236.84-145,228.98-57,493.28

Finding the Fourth Proportional to 105,236.84, 145,228.98 and 57,493.28

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Solution

The fourth proportional to 105,236.84, 145,228.98 and 57,493.28 is: 79,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,236.84 : 145,228.98 = 57,493.28 : x
  2. Step 2: Convert to fraction form
    105,236.84/145,228.98 = 57,493.28/x
  3. Step 3: Cross multiply
    105,236.84x = 145,228.98 × 57,493.28
  4. Step 4: Simplify right side
    105,236.84x = 8,349,690,411.25
  5. Step 5: Solve for x
    x = 8,349,690,411.25/105,236.84
  6. Step 6: Final answer
    x = 79,341.90

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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.