Home / 111,347.85-153,653.50-66,030.17

Finding the Fourth Proportional to 111,347.85, 153,653.50 and 66,030.17

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Solution

The fourth proportional to 111,347.85, 153,653.50 and 66,030.17 is: 91,117.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,347.85 : 153,653.50 = 66,030.17 : x
  2. Step 2: Convert to fraction form
    111,347.85/153,653.50 = 66,030.17/x
  3. Step 3: Cross multiply
    111,347.85x = 153,653.50 × 66,030.17
  4. Step 4: Simplify right side
    111,347.85x = 10,145,766,726.10
  5. Step 5: Solve for x
    x = 10,145,766,726.10/111,347.85
  6. Step 6: Final answer
    x = 91,117.76

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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.