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Finding the Fourth Proportional to 181,009.52, 249,789.32 and 100,435.31

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Solution

The fourth proportional to 181,009.52, 249,789.32 and 100,435.31 is: 138,598.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,009.52 : 249,789.32 = 100,435.31 : x
  2. Step 2: Convert to fraction form
    181,009.52/249,789.32 = 100,435.31/x
  3. Step 3: Cross multiply
    181,009.52x = 249,789.32 × 100,435.31
  4. Step 4: Simplify right side
    181,009.52x = 25,087,666,037.77
  5. Step 5: Solve for x
    x = 25,087,666,037.77/181,009.52
  6. Step 6: Final answer
    x = 138,598.60

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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.