Home / 105,611.18-145,760.64-60,291.08

Finding the Fourth Proportional to 105,611.18, 145,760.64 and 60,291.08

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Solution

The fourth proportional to 105,611.18, 145,760.64 and 60,291.08 is: 83,211.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,611.18 : 145,760.64 = 60,291.08 : x
  2. Step 2: Convert to fraction form
    105,611.18/145,760.64 = 60,291.08/x
  3. Step 3: Cross multiply
    105,611.18x = 145,760.64 × 60,291.08
  4. Step 4: Simplify right side
    105,611.18x = 8,788,065,678.29
  5. Step 5: Solve for x
    x = 8,788,065,678.29/105,611.18
  6. Step 6: Final answer
    x = 83,211.51

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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.