Home / 123,570.43-170,522.62-66,980.59

Finding the Fourth Proportional to 123,570.43, 170,522.62 and 66,980.59

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Solution

The fourth proportional to 123,570.43, 170,522.62 and 66,980.59 is: 92,430.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,570.43 : 170,522.62 = 66,980.59 : x
  2. Step 2: Convert to fraction form
    123,570.43/170,522.62 = 66,980.59/x
  3. Step 3: Cross multiply
    123,570.43x = 170,522.62 × 66,980.59
  4. Step 4: Simplify right side
    123,570.43x = 11,421,705,695.95
  5. Step 5: Solve for x
    x = 11,421,705,695.95/123,570.43
  6. Step 6: Final answer
    x = 92,430.74

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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.