Home / 117,904.86-162,816.77-74,898.21

Finding the Fourth Proportional to 117,904.86, 162,816.77 and 74,898.21

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Solution

The fourth proportional to 117,904.86, 162,816.77 and 74,898.21 is: 103,428.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,904.86 : 162,816.77 = 74,898.21 : x
  2. Step 2: Convert to fraction form
    117,904.86/162,816.77 = 74,898.21/x
  3. Step 3: Cross multiply
    117,904.86x = 162,816.77 × 74,898.21
  4. Step 4: Simplify right side
    117,904.86x = 12,194,684,630.98
  5. Step 5: Solve for x
    x = 12,194,684,630.98/117,904.86
  6. Step 6: Final answer
    x = 103,428.18

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1.5x scale

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.