Home / 111,686.18-154,127.27-63,939.89

Finding the Fourth Proportional to 111,686.18, 154,127.27 and 63,939.89

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Solution

The fourth proportional to 111,686.18, 154,127.27 and 63,939.89 is: 88,237.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,686.18 : 154,127.27 = 63,939.89 : x
  2. Step 2: Convert to fraction form
    111,686.18/154,127.27 = 63,939.89/x
  3. Step 3: Cross multiply
    111,686.18x = 154,127.27 × 63,939.89
  4. Step 4: Simplify right side
    111,686.18x = 9,854,879,599.46
  5. Step 5: Solve for x
    x = 9,854,879,599.46/111,686.18
  6. Step 6: Final answer
    x = 88,237.24

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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.