Home / 181,012.57-249,793.53-100,438.36

Finding the Fourth Proportional to 181,012.57, 249,793.53 and 100,438.36

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Solution

The fourth proportional to 181,012.57, 249,793.53 and 100,438.36 is: 138,602.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,012.57 : 249,793.53 = 100,438.36 : x
  2. Step 2: Convert to fraction form
    181,012.57/249,793.53 = 100,438.36/x
  3. Step 3: Cross multiply
    181,012.57x = 249,793.53 × 100,438.36
  4. Step 4: Simplify right side
    181,012.57x = 25,088,852,491.81
  5. Step 5: Solve for x
    x = 25,088,852,491.81/181,012.57
  6. Step 6: Final answer
    x = 138,602.82

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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.