Home / 223,526.35-308,443.03-128,037.07

Finding the Fourth Proportional to 223,526.35, 308,443.03 and 128,037.07

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Solution

The fourth proportional to 223,526.35, 308,443.03 and 128,037.07 is: 176,677.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,526.35 : 308,443.03 = 128,037.07 : x
  2. Step 2: Convert to fraction form
    223,526.35/308,443.03 = 128,037.07/x
  3. Step 3: Cross multiply
    223,526.35x = 308,443.03 × 128,037.07
  4. Step 4: Simplify right side
    223,526.35x = 39,492,141,823.12
  5. Step 5: Solve for x
    x = 39,492,141,823.12/223,526.35
  6. Step 6: Final answer
    x = 176,677.79

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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.