Home / 105,053.31-144,972.63-57,305.63

Finding the Fourth Proportional to 105,053.31, 144,972.63 and 57,305.63

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Solution

The fourth proportional to 105,053.31, 144,972.63 and 57,305.63 is: 79,081.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,053.31 : 144,972.63 = 57,305.63 : x
  2. Step 2: Convert to fraction form
    105,053.31/144,972.63 = 57,305.63/x
  3. Step 3: Cross multiply
    105,053.31x = 144,972.63 × 57,305.63
  4. Step 4: Simplify right side
    105,053.31x = 8,307,747,894.91
  5. Step 5: Solve for x
    x = 8,307,747,894.91/105,053.31
  6. Step 6: Final answer
    x = 79,081.26

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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.