Home / 124,528.19-186,980.40-99,493.92

Finding the Fourth Proportional to 124,528.19, 186,980.40 and 99,493.92

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Solution

The fourth proportional to 124,528.19, 186,980.40 and 99,493.92 is: 149,391.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,528.19 : 186,980.40 = 99,493.92 : x
  2. Step 2: Convert to fraction form
    124,528.19/186,980.40 = 99,493.92/x
  3. Step 3: Cross multiply
    124,528.19x = 186,980.40 × 99,493.92
  4. Step 4: Simplify right side
    124,528.19x = 18,603,412,959.17
  5. Step 5: Solve for x
    x = 18,603,412,959.17/124,528.19
  6. Step 6: Final answer
    x = 149,391.18

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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.