Home / 105,675.90-145,838.73-62,680.86

Finding the Fourth Proportional to 105,675.90, 145,838.73 and 62,680.86

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Solution

The fourth proportional to 105,675.90, 145,838.73 and 62,680.86 is: 86,503.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,675.90 : 145,838.73 = 62,680.86 : x
  2. Step 2: Convert to fraction form
    105,675.90/145,838.73 = 62,680.86/x
  3. Step 3: Cross multiply
    105,675.90x = 145,838.73 × 62,680.86
  4. Step 4: Simplify right side
    105,675.90x = 9,141,297,017.71
  5. Step 5: Solve for x
    x = 9,141,297,017.71/105,675.90
  6. Step 6: Final answer
    x = 86,503.14

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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.