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Finding the Fourth Proportional to 181,628.76, 250,643.80 and 105,151.08

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Solution

The fourth proportional to 181,628.76, 250,643.80 and 105,151.08 is: 145,106.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,628.76 : 250,643.80 = 105,151.08 : x
  2. Step 2: Convert to fraction form
    181,628.76/250,643.80 = 105,151.08/x
  3. Step 3: Cross multiply
    181,628.76x = 250,643.80 × 105,151.08
  4. Step 4: Simplify right side
    181,628.76x = 26,355,466,265.30
  5. Step 5: Solve for x
    x = 26,355,466,265.30/181,628.76
  6. Step 6: Final answer
    x = 145,106.24

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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.