Home / 123,117.24-169,901.72-66,528.60

Finding the Fourth Proportional to 123,117.24, 169,901.72 and 66,528.60

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Solution

The fourth proportional to 123,117.24, 169,901.72 and 66,528.60 is: 91,809.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,117.24 : 169,901.72 = 66,528.60 : x
  2. Step 2: Convert to fraction form
    123,117.24/169,901.72 = 66,528.60/x
  3. Step 3: Cross multiply
    123,117.24x = 169,901.72 × 66,528.60
  4. Step 4: Simplify right side
    123,117.24x = 11,303,323,569.19
  5. Step 5: Solve for x
    x = 11,303,323,569.19/123,117.24
  6. Step 6: Final answer
    x = 91,809.43

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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.