Home / 123,300.71-170,154.97-66,712.08

Finding the Fourth Proportional to 123,300.71, 170,154.97 and 66,712.08

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Solution

The fourth proportional to 123,300.71, 170,154.97 and 66,712.08 is: 92,062.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,300.71 : 170,154.97 = 66,712.08 : x
  2. Step 2: Convert to fraction form
    123,300.71/170,154.97 = 66,712.08/x
  3. Step 3: Cross multiply
    123,300.71x = 170,154.97 × 66,712.08
  4. Step 4: Simplify right side
    123,300.71x = 11,351,392,442.34
  5. Step 5: Solve for x
    x = 11,351,392,442.34/123,300.71
  6. Step 6: Final answer
    x = 92,062.67

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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.