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Finding the Fourth Proportional to 124,651.50, 171,931.78 and 84,347.52

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Solution

The fourth proportional to 124,651.50, 171,931.78 and 84,347.52 is: 116,340.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,651.50 : 171,931.78 = 84,347.52 : x
  2. Step 2: Convert to fraction form
    124,651.50/171,931.78 = 84,347.52/x
  3. Step 3: Cross multiply
    124,651.50x = 171,931.78 × 84,347.52
  4. Step 4: Simplify right side
    124,651.50x = 14,502,018,830.45
  5. Step 5: Solve for x
    x = 14,502,018,830.45/124,651.50
  6. Step 6: Final answer
    x = 116,340.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.