Home / 123,559.86-170,453.64-89,513.13

Finding the Fourth Proportional to 123,559.86, 170,453.64 and 89,513.13

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Solution

The fourth proportional to 123,559.86, 170,453.64 and 89,513.13 is: 123,485.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,559.86 : 170,453.64 = 89,513.13 : x
  2. Step 2: Convert to fraction form
    123,559.86/170,453.64 = 89,513.13/x
  3. Step 3: Cross multiply
    123,559.86x = 170,453.64 × 89,513.13
  4. Step 4: Simplify right side
    123,559.86x = 15,257,838,836.29
  5. Step 5: Solve for x
    x = 15,257,838,836.29/123,559.86
  6. Step 6: Final answer
    x = 123,485.40

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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.