Home / 124,890.80-187,271.40-45,964.40

Finding the Fourth Proportional to 124,890.80, 187,271.40 and 45,964.40

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Solution

The fourth proportional to 124,890.80, 187,271.40 and 45,964.40 is: 68,922.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,890.80 : 187,271.40 = 45,964.40 : x
  2. Step 2: Convert to fraction form
    124,890.80/187,271.40 = 45,964.40/x
  3. Step 3: Cross multiply
    124,890.80x = 187,271.40 × 45,964.40
  4. Step 4: Simplify right side
    124,890.80x = 8,607,817,538.16
  5. Step 5: Solve for x
    x = 8,607,817,538.16/124,890.80
  6. Step 6: Final answer
    x = 68,922.75

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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.