Home / 165,618.52-248,116.74-128,501.08

Finding the Fourth Proportional to 165,618.52, 248,116.74 and 128,501.08

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Solution

The fourth proportional to 165,618.52, 248,116.74 and 128,501.08 is: 192,510.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,618.52 : 248,116.74 = 128,501.08 : x
  2. Step 2: Convert to fraction form
    165,618.52/248,116.74 = 128,501.08/x
  3. Step 3: Cross multiply
    165,618.52x = 248,116.74 × 128,501.08
  4. Step 4: Simplify right side
    165,618.52x = 31,883,269,056.08
  5. Step 5: Solve for x
    x = 31,883,269,056.08/165,618.52
  6. Step 6: Final answer
    x = 192,510.29

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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.