Home / 123,507.36-170,374.41-75,124.08

Finding the Fourth Proportional to 123,507.36, 170,374.41 and 75,124.08

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Solution

The fourth proportional to 123,507.36, 170,374.41 and 75,124.08 is: 103,631.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,507.36 : 170,374.41 = 75,124.08 : x
  2. Step 2: Convert to fraction form
    123,507.36/170,374.41 = 75,124.08/x
  3. Step 3: Cross multiply
    123,507.36x = 170,374.41 × 75,124.08
  4. Step 4: Simplify right side
    123,507.36x = 12,799,220,806.79
  5. Step 5: Solve for x
    x = 12,799,220,806.79/123,507.36
  6. Step 6: Final answer
    x = 103,631.24

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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.