Home / 117,508.55-162,187.38-72,210.31

Finding the Fourth Proportional to 117,508.55, 162,187.38 and 72,210.31

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Solution

The fourth proportional to 117,508.55, 162,187.38 and 72,210.31 is: 99,665.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,508.55 : 162,187.38 = 72,210.31 : x
  2. Step 2: Convert to fraction form
    117,508.55/162,187.38 = 72,210.31/x
  3. Step 3: Cross multiply
    117,508.55x = 162,187.38 × 72,210.31
  4. Step 4: Simplify right side
    117,508.55x = 11,711,600,582.42
  5. Step 5: Solve for x
    x = 11,711,600,582.42/117,508.55
  6. Step 6: Final answer
    x = 99,665.95

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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.