Home / 111,389.40-153,695.64-66,058.92

Finding the Fourth Proportional to 111,389.40, 153,695.64 and 66,058.92

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Solution

The fourth proportional to 111,389.40, 153,695.64 and 66,058.92 is: 91,148.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,389.40 : 153,695.64 = 66,058.92 : x
  2. Step 2: Convert to fraction form
    111,389.40/153,695.64 = 66,058.92/x
  3. Step 3: Cross multiply
    111,389.40x = 153,695.64 × 66,058.92
  4. Step 4: Simplify right side
    111,389.40x = 10,152,967,987.11
  5. Step 5: Solve for x
    x = 10,152,967,987.11/111,389.40
  6. Step 6: Final answer
    x = 91,148.42

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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.