Home / 158,284.88-218,433.16-86,669.34

Finding the Fourth Proportional to 158,284.88, 218,433.16 and 86,669.34

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Solution

The fourth proportional to 158,284.88, 218,433.16 and 86,669.34 is: 119,603.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,284.88 : 218,433.16 = 86,669.34 : x
  2. Step 2: Convert to fraction form
    158,284.88/218,433.16 = 86,669.34/x
  3. Step 3: Cross multiply
    158,284.88x = 218,433.16 × 86,669.34
  4. Step 4: Simplify right side
    158,284.88x = 18,931,457,811.31
  5. Step 5: Solve for x
    x = 18,931,457,811.31/158,284.88
  6. Step 6: Final answer
    x = 119,603.70

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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.