Home / 145,631.60-218,447.40-96,383.60

Finding the Fourth Proportional to 145,631.60, 218,447.40 and 96,383.60

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Solution

The fourth proportional to 145,631.60, 218,447.40 and 96,383.60 is: 144,575.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,631.60 : 218,447.40 = 96,383.60 : x
  2. Step 2: Convert to fraction form
    145,631.60/218,447.40 = 96,383.60/x
  3. Step 3: Cross multiply
    145,631.60x = 218,447.40 × 96,383.60
  4. Step 4: Simplify right side
    145,631.60x = 21,054,746,822.64
  5. Step 5: Solve for x
    x = 21,054,746,822.64/145,631.60
  6. Step 6: Final answer
    x = 144,575.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.