Home / 123,599.66-170,574.05-78,261.12

Finding the Fourth Proportional to 123,599.66, 170,574.05 and 78,261.12

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Solution

The fourth proportional to 123,599.66, 170,574.05 and 78,261.12 is: 108,004.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,599.66 : 170,574.05 = 78,261.12 : x
  2. Step 2: Convert to fraction form
    123,599.66/170,574.05 = 78,261.12/x
  3. Step 3: Cross multiply
    123,599.66x = 170,574.05 × 78,261.12
  4. Step 4: Simplify right side
    123,599.66x = 13,349,316,391.59
  5. Step 5: Solve for x
    x = 13,349,316,391.59/123,599.66
  6. Step 6: Final answer
    x = 108,004.48

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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.