Home / 105,291.63-145,302.17-57,545.01

Finding the Fourth Proportional to 105,291.63, 145,302.17 and 57,545.01

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Solution

The fourth proportional to 105,291.63, 145,302.17 and 57,545.01 is: 79,411.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,291.63 : 145,302.17 = 57,545.01 : x
  2. Step 2: Convert to fraction form
    105,291.63/145,302.17 = 57,545.01/x
  3. Step 3: Cross multiply
    105,291.63x = 145,302.17 × 57,545.01
  4. Step 4: Simplify right side
    105,291.63x = 8,361,414,537.95
  5. Step 5: Solve for x
    x = 8,361,414,537.95/105,291.63
  6. Step 6: Final answer
    x = 79,411.96

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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.