Home / 125,829.81-173,652.32-72,123.77

Finding the Fourth Proportional to 125,829.81, 173,652.32 and 72,123.77

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Solution

The fourth proportional to 125,829.81, 173,652.32 and 72,123.77 is: 99,534.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,829.81 : 173,652.32 = 72,123.77 : x
  2. Step 2: Convert to fraction form
    125,829.81/173,652.32 = 72,123.77/x
  3. Step 3: Cross multiply
    125,829.81x = 173,652.32 × 72,123.77
  4. Step 4: Simplify right side
    125,829.81x = 12,524,460,602.09
  5. Step 5: Solve for x
    x = 12,524,460,602.09/125,829.81
  6. Step 6: Final answer
    x = 99,534.92

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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.