Home / 135,812.74-187,412.88-75,383.50

Finding the Fourth Proportional to 135,812.74, 187,412.88 and 75,383.50

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Solution

The fourth proportional to 135,812.74, 187,412.88 and 75,383.50 is: 104,024.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,812.74 : 187,412.88 = 75,383.50 : x
  2. Step 2: Convert to fraction form
    135,812.74/187,412.88 = 75,383.50/x
  3. Step 3: Cross multiply
    135,812.74x = 187,412.88 × 75,383.50
  4. Step 4: Simplify right side
    135,812.74x = 14,127,838,839.48
  5. Step 5: Solve for x
    x = 14,127,838,839.48/135,812.74
  6. Step 6: Final answer
    x = 104,024.40

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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.