Home / 135,556.63-187,068.15-75,136.35

Finding the Fourth Proportional to 135,556.63, 187,068.15 and 75,136.35

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Solution

The fourth proportional to 135,556.63, 187,068.15 and 75,136.35 is: 103,688.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,556.63 : 187,068.15 = 75,136.35 : x
  2. Step 2: Convert to fraction form
    135,556.63/187,068.15 = 75,136.35/x
  3. Step 3: Cross multiply
    135,556.63x = 187,068.15 × 75,136.35
  4. Step 4: Simplify right side
    135,556.63x = 14,055,618,693.76
  5. Step 5: Solve for x
    x = 14,055,618,693.76/135,556.63
  6. Step 6: Final answer
    x = 103,688.17

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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.