Home / 124,139.28-186,209.28-45,253.38

Finding the Fourth Proportional to 124,139.28, 186,209.28 and 45,253.38

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Solution

The fourth proportional to 124,139.28, 186,209.28 and 45,253.38 is: 67,880.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,139.28 : 186,209.28 = 45,253.38 : x
  2. Step 2: Convert to fraction form
    124,139.28/186,209.28 = 45,253.38/x
  3. Step 3: Cross multiply
    124,139.28x = 186,209.28 × 45,253.38
  4. Step 4: Simplify right side
    124,139.28x = 8,426,599,307.37
  5. Step 5: Solve for x
    x = 8,426,599,307.37/124,139.28
  6. Step 6: Final answer
    x = 67,880.20

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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.