Home / 154,437.75-213,127.65-86,453.01

Finding the Fourth Proportional to 154,437.75, 213,127.65 and 86,453.01

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Solution

The fourth proportional to 154,437.75, 213,127.65 and 86,453.01 is: 119,307.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,437.75 : 213,127.65 = 86,453.01 : x
  2. Step 2: Convert to fraction form
    154,437.75/213,127.65 = 86,453.01/x
  3. Step 3: Cross multiply
    154,437.75x = 213,127.65 × 86,453.01
  4. Step 4: Simplify right side
    154,437.75x = 18,425,526,856.73
  5. Step 5: Solve for x
    x = 18,425,526,856.73/154,437.75
  6. Step 6: Final answer
    x = 119,307.14

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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.