Home / 135,946.08-187,599.51-75,520.89

Finding the Fourth Proportional to 135,946.08, 187,599.51 and 75,520.89

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Solution

The fourth proportional to 135,946.08, 187,599.51 and 75,520.89 is: 104,215.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,946.08 : 187,599.51 = 75,520.89 : x
  2. Step 2: Convert to fraction form
    135,946.08/187,599.51 = 75,520.89/x
  3. Step 3: Cross multiply
    135,946.08x = 187,599.51 × 75,520.89
  4. Step 4: Simplify right side
    135,946.08x = 14,167,681,958.76
  5. Step 5: Solve for x
    x = 14,167,681,958.76/135,946.08
  6. Step 6: Final answer
    x = 104,215.45

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1.5x scale

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.