Home / 105,985.29-158,977.94-39,424.08

Finding the Fourth Proportional to 105,985.29, 158,977.94 and 39,424.08

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Solution

The fourth proportional to 105,985.29, 158,977.94 and 39,424.08 is: 59,136.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,985.29 : 158,977.94 = 39,424.08 : x
  2. Step 2: Convert to fraction form
    105,985.29/158,977.94 = 39,424.08/x
  3. Step 3: Cross multiply
    105,985.29x = 158,977.94 × 39,424.08
  4. Step 4: Simplify right side
    105,985.29x = 6,267,559,024.80
  5. Step 5: Solve for x
    x = 6,267,559,024.80/105,985.29
  6. Step 6: Final answer
    x = 59,136.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.