Home / 158,146.60-218,233.02-86,512.36

Finding the Fourth Proportional to 158,146.60, 218,233.02 and 86,512.36

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Solution

The fourth proportional to 158,146.60, 218,233.02 and 86,512.36 is: 119,381.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,146.60 : 218,233.02 = 86,512.36 : x
  2. Step 2: Convert to fraction form
    158,146.60/218,233.02 = 86,512.36/x
  3. Step 3: Cross multiply
    158,146.60x = 218,233.02 × 86,512.36
  4. Step 4: Simplify right side
    158,146.60x = 18,879,853,590.13
  5. Step 5: Solve for x
    x = 18,879,853,590.13/158,146.60
  6. Step 6: Final answer
    x = 119,381.98

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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.