Home / 158,339.64-218,511.06-86,726.34

Finding the Fourth Proportional to 158,339.64, 218,511.06 and 86,726.34

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Solution

The fourth proportional to 158,339.64, 218,511.06 and 86,726.34 is: 119,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,339.64 : 218,511.06 = 86,726.34 : x
  2. Step 2: Convert to fraction form
    158,339.64/218,511.06 = 86,726.34/x
  3. Step 3: Cross multiply
    158,339.64x = 218,511.06 × 86,726.34
  4. Step 4: Simplify right side
    158,339.64x = 18,950,664,483.32
  5. Step 5: Solve for x
    x = 18,950,664,483.32/158,339.64
  6. Step 6: Final answer
    x = 119,683.64

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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.