Home / 109,741.15-151,434.93-64,420.98

Finding the Fourth Proportional to 109,741.15, 151,434.93 and 64,420.98

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Solution

The fourth proportional to 109,741.15, 151,434.93 and 64,420.98 is: 88,896.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,741.15 : 151,434.93 = 64,420.98 : x
  2. Step 2: Convert to fraction form
    109,741.15/151,434.93 = 64,420.98/x
  3. Step 3: Cross multiply
    109,741.15x = 151,434.93 × 64,420.98
  4. Step 4: Simplify right side
    109,741.15x = 9,755,586,596.83
  5. Step 5: Solve for x
    x = 9,755,586,596.83/109,741.15
  6. Step 6: Final answer
    x = 88,896.34

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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.