Home / 158,133.72-218,225.30-86,514.94

Finding the Fourth Proportional to 158,133.72, 218,225.30 and 86,514.94

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Solution

The fourth proportional to 158,133.72, 218,225.30 and 86,514.94 is: 119,391.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,133.72 : 218,225.30 = 86,514.94 : x
  2. Step 2: Convert to fraction form
    158,133.72/218,225.30 = 86,514.94/x
  3. Step 3: Cross multiply
    158,133.72x = 218,225.30 × 86,514.94
  4. Step 4: Simplify right side
    158,133.72x = 18,879,748,735.98
  5. Step 5: Solve for x
    x = 18,879,748,735.98/158,133.72
  6. Step 6: Final answer
    x = 119,391.04

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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.