Home / 111,376.92-153,638.12-66,011.25

Finding the Fourth Proportional to 111,376.92, 153,638.12 and 66,011.25

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Solution

The fourth proportional to 111,376.92, 153,638.12 and 66,011.25 is: 91,058.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,376.92 : 153,638.12 = 66,011.25 : x
  2. Step 2: Convert to fraction form
    111,376.92/153,638.12 = 66,011.25/x
  3. Step 3: Cross multiply
    111,376.92x = 153,638.12 × 66,011.25
  4. Step 4: Simplify right side
    111,376.92x = 10,141,844,718.71
  5. Step 5: Solve for x
    x = 10,141,844,718.71/111,376.92
  6. Step 6: Final answer
    x = 91,058.76

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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.