Home / 105,211.98-145,186.65-59,901.03

Finding the Fourth Proportional to 105,211.98, 145,186.65 and 59,901.03

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Solution

The fourth proportional to 105,211.98, 145,186.65 and 59,901.03 is: 82,660.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,211.98 : 145,186.65 = 59,901.03 : x
  2. Step 2: Convert to fraction form
    105,211.98/145,186.65 = 59,901.03/x
  3. Step 3: Cross multiply
    105,211.98x = 145,186.65 × 59,901.03
  4. Step 4: Simplify right side
    105,211.98x = 8,696,829,877.25
  5. Step 5: Solve for x
    x = 8,696,829,877.25/105,211.98
  6. Step 6: Final answer
    x = 82,660.07

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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.