Home / 181,012.52-249,793.45-100,438.31

Finding the Fourth Proportional to 181,012.52, 249,793.45 and 100,438.31

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Solution

The fourth proportional to 181,012.52, 249,793.45 and 100,438.31 is: 138,602.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,012.52 : 249,793.45 = 100,438.31 : x
  2. Step 2: Convert to fraction form
    181,012.52/249,793.45 = 100,438.31/x
  3. Step 3: Cross multiply
    181,012.52x = 249,793.45 × 100,438.31
  4. Step 4: Simplify right side
    181,012.52x = 25,088,831,967.07
  5. Step 5: Solve for x
    x = 25,088,831,967.07/181,012.52
  6. Step 6: Final answer
    x = 138,602.74

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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.