Home / 121,564.94-182,428.84-42,679.40

Finding the Fourth Proportional to 121,564.94, 182,428.84 and 42,679.40

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Solution

The fourth proportional to 121,564.94, 182,428.84 and 42,679.40 is: 64,047.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,564.94 : 182,428.84 = 42,679.40 : x
  2. Step 2: Convert to fraction form
    121,564.94/182,428.84 = 42,679.40/x
  3. Step 3: Cross multiply
    121,564.94x = 182,428.84 × 42,679.40
  4. Step 4: Simplify right side
    121,564.94x = 7,785,953,433.90
  5. Step 5: Solve for x
    x = 7,785,953,433.90/121,564.94
  6. Step 6: Final answer
    x = 64,047.69

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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.