Home / 105,985.40-146,259.60-60,663.56

Finding the Fourth Proportional to 105,985.40, 146,259.60 and 60,663.56

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Solution

The fourth proportional to 105,985.40, 146,259.60 and 60,663.56 is: 83,715.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,985.40 : 146,259.60 = 60,663.56 : x
  2. Step 2: Convert to fraction form
    105,985.40/146,259.60 = 60,663.56/x
  3. Step 3: Cross multiply
    105,985.40x = 146,259.60 × 60,663.56
  4. Step 4: Simplify right side
    105,985.40x = 8,872,628,020.18
  5. Step 5: Solve for x
    x = 8,872,628,020.18/105,985.40
  6. Step 6: Final answer
    x = 83,715.57

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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.