Home / 107,828.64-161,528.16-84,345.12

Finding the Fourth Proportional to 107,828.64, 161,528.16 and 84,345.12

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Solution

The fourth proportional to 107,828.64, 161,528.16 and 84,345.12 is: 126,349.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,828.64 : 161,528.16 = 84,345.12 : x
  2. Step 2: Convert to fraction form
    107,828.64/161,528.16 = 84,345.12/x
  3. Step 3: Cross multiply
    107,828.64x = 161,528.16 × 84,345.12
  4. Step 4: Simplify right side
    107,828.64x = 13,624,112,038.58
  5. Step 5: Solve for x
    x = 13,624,112,038.58/107,828.64
  6. Step 6: Final answer
    x = 126,349.66

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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.