Home / 108,686.66-149,985.67-60,939.86

Finding the Fourth Proportional to 108,686.66, 149,985.67 and 60,939.86

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Solution

The fourth proportional to 108,686.66, 149,985.67 and 60,939.86 is: 84,095.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,686.66 : 149,985.67 = 60,939.86 : x
  2. Step 2: Convert to fraction form
    108,686.66/149,985.67 = 60,939.86/x
  3. Step 3: Cross multiply
    108,686.66x = 149,985.67 × 60,939.86
  4. Step 4: Simplify right side
    108,686.66x = 9,140,105,731.81
  5. Step 5: Solve for x
    x = 9,140,105,731.81/108,686.66
  6. Step 6: Final answer
    x = 84,095.93

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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.