Home / 181,078.86-249,886.38-100,506.15

Finding the Fourth Proportional to 181,078.86, 249,886.38 and 100,506.15

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Solution

The fourth proportional to 181,078.86, 249,886.38 and 100,506.15 is: 138,697.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,078.86 : 249,886.38 = 100,506.15 : x
  2. Step 2: Convert to fraction form
    181,078.86/249,886.38 = 100,506.15/x
  3. Step 3: Cross multiply
    181,078.86x = 249,886.38 × 100,506.15
  4. Step 4: Simplify right side
    181,078.86x = 25,115,117,991.24
  5. Step 5: Solve for x
    x = 25,115,117,991.24/181,078.86
  6. Step 6: Final answer
    x = 138,697.13

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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.