Home / 112,810.58-155,637.40-67,489.86

Finding the Fourth Proportional to 112,810.58, 155,637.40 and 67,489.86

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Solution

The fourth proportional to 112,810.58, 155,637.40 and 67,489.86 is: 93,111.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,810.58 : 155,637.40 = 67,489.86 : x
  2. Step 2: Convert to fraction form
    112,810.58/155,637.40 = 67,489.86/x
  3. Step 3: Cross multiply
    112,810.58x = 155,637.40 × 67,489.86
  4. Step 4: Simplify right side
    112,810.58x = 10,503,946,336.76
  5. Step 5: Solve for x
    x = 10,503,946,336.76/112,810.58
  6. Step 6: Final answer
    x = 93,111.36

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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.