Home / 109,530.18-151,148.34-61,133.46

Finding the Fourth Proportional to 109,530.18, 151,148.34 and 61,133.46

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Solution

The fourth proportional to 109,530.18, 151,148.34 and 61,133.46 is: 84,362.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,530.18 : 151,148.34 = 61,133.46 : x
  2. Step 2: Convert to fraction form
    109,530.18/151,148.34 = 61,133.46/x
  3. Step 3: Cross multiply
    109,530.18x = 151,148.34 × 61,133.46
  4. Step 4: Simplify right side
    109,530.18x = 9,240,220,997.46
  5. Step 5: Solve for x
    x = 9,240,220,997.46/109,530.18
  6. Step 6: Final answer
    x = 84,362.33

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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.