Home / 91,106.04-136,710.96-72,754.68

Finding the Fourth Proportional to 91,106.04, 136,710.96 and 72,754.68

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Solution

The fourth proportional to 91,106.04, 136,710.96 and 72,754.68 is: 109,173.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,106.04 : 136,710.96 = 72,754.68 : x
  2. Step 2: Convert to fraction form
    91,106.04/136,710.96 = 72,754.68/x
  3. Step 3: Cross multiply
    91,106.04x = 136,710.96 × 72,754.68
  4. Step 4: Simplify right side
    91,106.04x = 9,946,362,147.29
  5. Step 5: Solve for x
    x = 9,946,362,147.29/91,106.04
  6. Step 6: Final answer
    x = 109,173.47

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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.