Home / 109,518.52-151,159.14-69,206.68

Finding the Fourth Proportional to 109,518.52, 151,159.14 and 69,206.68

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Solution

The fourth proportional to 109,518.52, 151,159.14 and 69,206.68 is: 95,520.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,518.52 : 151,159.14 = 69,206.68 : x
  2. Step 2: Convert to fraction form
    109,518.52/151,159.14 = 69,206.68/x
  3. Step 3: Cross multiply
    109,518.52x = 151,159.14 × 69,206.68
  4. Step 4: Simplify right side
    109,518.52x = 10,461,222,231.06
  5. Step 5: Solve for x
    x = 10,461,222,231.06/109,518.52
  6. Step 6: Final answer
    x = 95,520.12

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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.