Home / 223,585.32-308,547.51-128,092.39

Finding the Fourth Proportional to 223,585.32, 308,547.51 and 128,092.39

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Solution

The fourth proportional to 223,585.32, 308,547.51 and 128,092.39 is: 176,767.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,585.32 : 308,547.51 = 128,092.39 : x
  2. Step 2: Convert to fraction form
    223,585.32/308,547.51 = 128,092.39/x
  3. Step 3: Cross multiply
    223,585.32x = 308,547.51 × 128,092.39
  4. Step 4: Simplify right side
    223,585.32x = 39,522,587,984.45
  5. Step 5: Solve for x
    x = 39,522,587,984.45/223,585.32
  6. Step 6: Final answer
    x = 176,767.37

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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.