Home / 123,526.35-170,400.51-75,143.09

Finding the Fourth Proportional to 123,526.35, 170,400.51 and 75,143.09

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Solution

The fourth proportional to 123,526.35, 170,400.51 and 75,143.09 is: 103,657.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,526.35 : 170,400.51 = 75,143.09 : x
  2. Step 2: Convert to fraction form
    123,526.35/170,400.51 = 75,143.09/x
  3. Step 3: Cross multiply
    123,526.35x = 170,400.51 × 75,143.09
  4. Step 4: Simplify right side
    123,526.35x = 12,804,421,284.98
  5. Step 5: Solve for x
    x = 12,804,421,284.98/123,526.35
  6. Step 6: Final answer
    x = 103,657.41

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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.