Home / 125,935.36-173,784-72,222.64

Finding the Fourth Proportional to 125,935.36, 173,784 and 72,222.64

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Solution

The fourth proportional to 125,935.36, 173,784 and 72,222.64 is: 99,663.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,935.36 : 173,784 = 72,222.64 : x
  2. Step 2: Convert to fraction form
    125,935.36/173,784 = 72,222.64/x
  3. Step 3: Cross multiply
    125,935.36x = 173,784 × 72,222.64
  4. Step 4: Simplify right side
    125,935.36x = 12,551,139,269.76
  5. Step 5: Solve for x
    x = 12,551,139,269.76/125,935.36
  6. Step 6: Final answer
    x = 99,663.35

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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.