Home / 140,271.20-193,574-76,608.98

Finding the Fourth Proportional to 140,271.20, 193,574 and 76,608.98

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Solution

The fourth proportional to 140,271.20, 193,574 and 76,608.98 is: 105,720.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,271.20 : 193,574 = 76,608.98 : x
  2. Step 2: Convert to fraction form
    140,271.20/193,574 = 76,608.98/x
  3. Step 3: Cross multiply
    140,271.20x = 193,574 × 76,608.98
  4. Step 4: Simplify right side
    140,271.20x = 14,829,506,694.52
  5. Step 5: Solve for x
    x = 14,829,506,694.52/140,271.20
  6. Step 6: Final answer
    x = 105,720.25

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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.