Home / 158,905.06-219,283.08-87,280.81

Finding the Fourth Proportional to 158,905.06, 219,283.08 and 87,280.81

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Solution

The fourth proportional to 158,905.06, 219,283.08 and 87,280.81 is: 120,444.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,905.06 : 219,283.08 = 87,280.81 : x
  2. Step 2: Convert to fraction form
    158,905.06/219,283.08 = 87,280.81/x
  3. Step 3: Cross multiply
    158,905.06x = 219,283.08 × 87,280.81
  4. Step 4: Simplify right side
    158,905.06x = 19,139,204,841.69
  5. Step 5: Solve for x
    x = 19,139,204,841.69/158,905.06
  6. Step 6: Final answer
    x = 120,444.28

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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.