Home / 113,810.76-156,962.45-68,480.28

Finding the Fourth Proportional to 113,810.76, 156,962.45 and 68,480.28

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Solution

The fourth proportional to 113,810.76, 156,962.45 and 68,480.28 is: 94,444.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,810.76 : 156,962.45 = 68,480.28 : x
  2. Step 2: Convert to fraction form
    113,810.76/156,962.45 = 68,480.28/x
  3. Step 3: Cross multiply
    113,810.76x = 156,962.45 × 68,480.28
  4. Step 4: Simplify right side
    113,810.76x = 10,748,832,525.49
  5. Step 5: Solve for x
    x = 10,748,832,525.49/113,810.76
  6. Step 6: Final answer
    x = 94,444.78

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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.