Home / 111,888.48-154,400.40-61,577.76

Finding the Fourth Proportional to 111,888.48, 154,400.40 and 61,577.76

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Solution

The fourth proportional to 111,888.48, 154,400.40 and 61,577.76 is: 84,974.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,888.48 : 154,400.40 = 61,577.76 : x
  2. Step 2: Convert to fraction form
    111,888.48/154,400.40 = 61,577.76/x
  3. Step 3: Cross multiply
    111,888.48x = 154,400.40 × 61,577.76
  4. Step 4: Simplify right side
    111,888.48x = 9,507,630,775.10
  5. Step 5: Solve for x
    x = 9,507,630,775.10/111,888.48
  6. Step 6: Final answer
    x = 84,974.17

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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.