Home / 123,389.28-170,282.64-69,674.76

Finding the Fourth Proportional to 123,389.28, 170,282.64 and 69,674.76

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Solution

The fourth proportional to 123,389.28, 170,282.64 and 69,674.76 is: 96,154.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,389.28 : 170,282.64 = 69,674.76 : x
  2. Step 2: Convert to fraction form
    123,389.28/170,282.64 = 69,674.76/x
  3. Step 3: Cross multiply
    123,389.28x = 170,282.64 × 69,674.76
  4. Step 4: Simplify right side
    123,389.28x = 11,864,402,074.17
  5. Step 5: Solve for x
    x = 11,864,402,074.17/123,389.28
  6. Step 6: Final answer
    x = 96,154.24

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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.